ESET expands consumer and SOHO protection with new AI security and anti-scam capabilities

  • New ESET AI Security layer protects users from AI-driven scams and emerging threats targeting AI tools.
  • Advanced protection features include AI Conversation Security, AI Agent Security, and Behavioral Monitoring.
  • Additional improvements include enhanced privacy and control with Browser Screen Protection, as well as Web Control, which helps users stay safer during everyday online activity.

BRATISLAVA — October 27, 2026 — ESET, a global leader in cybersecurity, today announced new upgrades to ESET HOME Security and ESET Small Business Security, helping consumers and small office/home office users better protect themselves against scams, including increasingly sophisticated AI-powered scams, malicious links, and emerging threats targeting AI tools.

“AI is quickly becoming part of everyday digital life, and cybercriminals are already using it to create more convincing scams and new attack paths,” said Viktória Ivanová, Vice President of Consumer & IoT at ESET. “With this launch, we are strengthening protection exactly where people work, browse, communicate, and experiment with AI tools. Our goal is to protect users in an increasingly complex online environment, while making advanced security effortless, understandable, and always within reach.”

Recognizing this shift, ESET has been strengthening its consumer and SOHO protection against scams for several years and now introduces a new AI Security protection layer, built specifically to safeguard users in this rapidly evolving digital landscape.

Key features of ESET AI Security

AI Conversation Security – Safeguards interactions between end users and ChatGPT. Other major LLMs, such as Gemini and Copilot, will be integrated soon. It proactively scans URLs found in LLM responses and flags content originating from phishing, malicious, or potentially unwanted sources, informing users that the referenced content may not be safe before they click on it. It also scans scripts generated by LLMs to help prevent users from running malicious code on their devices.

AI Agent Security – Monitors what AI agents access and download before execution happens. It proactively protects against unsafe files, scripts downloaded by AI tools, and suspicious external URLs.

AI Skills Checker – AI Skills Checker is a free online tool powered by AI Agent Security technology. It scans AI skills (add-ons for AI tools that enhance their functionality) for signs of malicious activity and risky behavior before users install and use them.

AI Behavioral Monitoring – Works alongside AI Agent Security to continuously monitor AI agents’ behaviors and actions to discover unusual actions, suspicious access attempts, unexpected behavior patterns, and suspicious download sources.

ESET is also introducing Browser Screen Protection, designed to safeguard sensitive data during online activity, which:

  • Prevents unauthorized screenshots, screen recording, and screen sharing
  • Protects against infostealers and screen-capture malware
  • And strengthens security during online banking, shopping, and private browsing sessions

Additionally, ESET expands its protection to the iOS environment with ESET Mobile Security for iOS*, protecting users against malicious websites, links, and threats coming from misconfigured device settings or vulnerable Wi-Fi networks. This solution is available on the App Store in both free and premium versions.

ESET Mobile Security for iOS includes:

Link Checker (Free) – Checks any URL against ESET’s continually updated database of malicious links.

Device Scan (Free) – Provides a one-click security posture overview and checks the device setup for potential weaknesses, including misconfigured settings, missing protection-related permissions, and ignored issues.

Device Settings Check (Free) – Reviews key protections, such as screen lock, notification handling, and available storage for future updates.

Anti-Phishing for Safari (Premium) – Blocks malicious pages before they load.

Connection Security (Premium) – Flags risky or unsecured Wi-Fi networks while allowing creation of a list of trusted networks.

Besides all above-mentioned improvements, ESET Small Business Security now also includes Web Control. This feature enables users to configure web access settings to protect employees from accessing web pages that may contain dangerous or inappropriate content, potentially offensive material, content violating intellectual property rights, or pages that may have a negative impact on productivity.

To learn more about ESET HOME and its subscription tiers, visit our dedicated webpage. For more information about ESET Small Business Security, visit the product page.

*Pending approval. iOS app available soon. App release is subject to Apple App Store approval. Actual app availability may vary by region.

 

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET introduces ESET NeoCortex: Cybersecurity AI model with 200 times lower training costs, and a never-go-rogue design

  • ESET NeoCortex, a state-of-the-art foundational AI model powering ESET LiveCortex, enables deeper incident understanding, reconstructs missing incident context, and provides early insight into attack progression for defenders aiming for “minus-one-day defense”.
  • Via highly optimized training, cybersecurity specialization and smart engineering, ESET NeoCortex delivers significantly more accurate, defense-oriented results at 1/200th of the training cost of general-purpose AI models.
  • ESET NeoCortex, with a never-go-rogue  design, employs multi-layered measures including restricted sandboxes, read-only tools, continuous monitoring, a kill switch and human expert oversight of critical response decisions.
  • Developed and self-hosted within ESET’s secure environment, the model ensures that critical workloads, sensitive security data and model operations remain under ESET’s control, reducing exposure to abrupt shifts in third-party AI providers, commercial or geopolitical spheres.

Bratislava, Slovakia — October 27, 2026 —ESET, a global leader in cybersecurity, today introduced ESET NeoCortex, its specialized, foundational cybersecurity model powering ESET LiveCortex. Available within the ESET PROTECT Platform, ESET LiveCortex connects, enriches and prioritizes fragmented security signals to turn them into actionable incidents.

Powered by ESET NeoCortex, ESET LiveCortex processes billions of raw telemetry events daily, correlating the signals that matter into actionable incidents. Just 0.00111% of those events – approximately 1 in 90,000 – contribute to incidents presented to customers, separating meaningful activity from noise. By reducing alert fatigue and prioritizing incidents that warrant attention, ESET’s AI technology strengthens human expertise and helps defenders act before attackers reach their objectives.

“AI is accelerating both cyberattacks and cyberdefenses. With ESET NeoCortex, we are applying our AI investment to develop specialized foundational cybersecurity intelligence that remains under our control and strengthens, rather than replaces, human expertise,” said Juraj Malcho, Chief Technology Officer at ESET. “This is an important step toward a new generation of predictive, AI-powered security operations leveraging world-model architecture.”

Built for structured, time-dependent and adversarial security data, NeoCortex draws on patterns learned from real security incidents to analyze activity in context, recognize similar cases and estimate an attacker’s likely next step.

The need for this contextual analysis becomes especially clear during periods such as Black October – specifically the week leading up to Oct 25, 2026 – when critical security issues affecting PHP, Linux, GitLab and other key systems demanded rapid, prioritized responses. ESET NeoCortex is designed to help analysts make these critical decisions, while keeping human defenders in control.

Lowering the noise, improving incident investigation

Modern business environments generate vast amounts of raw security data across endpoints, identities, cloud workloads, networks, and applications. With shrinking time to detect and respond to attacks, the challenge is to process the inputs and determine which signals belong together, which point to a possible threat, and what action to take next.

Within the ESET PROTECT Platform, ESET LiveCortex acts as a nerve center for business protection. It connects signals that may appear harmless in isolation – such as sign-in anomalies, suspicious process launches, unusual connections, configuration changes and subsequent attempts to access data – into prioritized incidents. This gives defenders a focused view, reduces manual investigation and prevents repeated low-value alerts from consuming analyst time.

ESET NeoCortex – an AI model built on world-model architecture – enhances the process of reducing raw telemetry to focused incidents by learning how digital environments behave, how events relate and what may happen next, helping security teams investigate incidents more efficiently and identify potential attack progression early.

Minus-one-day defense: Cost-effective and built for security

These investigation capabilities require a model built specifically for the structure and behavior of security data. While general-purpose large language models are designed to produce plausible responses across a wide range of topics, security operations require consistent analysis of entities, timestamps, indicators, process relationships and incomplete observations across a developing incident.

ESET NeoCortex is designed for these requirements. It can reconstruct missing incident context, create compact representations of complex incidents and identify anomalous events within a wider attack sequence. Its world-model approach also estimates how an attack may progress, giving defenders an opportunity to intervene before the next stage unfolds – a “minus-one-day defense.”

It does not operate as a standalone decision maker. It forms part of a layered security architecture combining specialized models, deterministic controls, correlation logic, validation, auditability and expert human oversight.

ESET’s internal research shows that a specialized model such as ESET NeoCortex can be trained at up to a 200 times lower cost than a large general reasoning model, while delivering more accurate, defense-focused results. These efficiencies come from ESET- optimized training, focus on cybersecurity vocabulary, purpose-built security engineering, lower computing requirements and privately owned hardware.

For defenders, this translates into more frequent updates to learned incident patterns, lower infrastructure overhead and more predictable costs, with computing resources focused on security analysis rather than broad conversational capabilities.

Securing AI tools and sovereignty

As AI becomes integral to cybersecurity infrastructure and a target itself, ESET has designed ESET NeoCortex to operate under strict safeguards to ensure that the AI never escapes and never “goes rogue” on the open internet. These include restricted sandboxes, read-only tools, continuous monitoring, defined usage and token limits, a kill switch and human expert oversight of critical response decisions.

Developed and operated on ESET’s own infrastructure, ESET NeoCortex keeps sensitive security data and model operations under ESET’s control. This self-hosted approach reduces reliance on third-party AI providers and supports stronger data governance, consistent protection and operational continuity reducing customer exposure to shifts in geopolitical, commercial, and AI provider spheres.

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET named preferred MDR vendor by cysurance for new cyber warranty and insurance program

San Diego, Calif. — September 1, 2026 — ESET, a global leader in cybersecurity, today announced a new partnership with Cysurance, a leading next-generation risk mitigation company, that delivers the first fully integrated warranty protection program for ESET MDR customers. This new offering gives businesses instant warranty coverage via the purchase of ESET’s MDR subscription tiers, enabling customers to secure same-day cyber insurance without underwriting at discounts of up to 60–80% off standard market premiums.

“We’re thrilled to partner with Cysurance to bring a warranty solution directly to our MDR customers,” said Ryan Grant, Country Manager, US & Canada, for ESET North America. “Businesses often face long delays, complex applications, and steep premiums when seeking financial coverage in case of cyber incident. Through this partnership, ESET customers gain immediate warranty protection and a dramatically simplified path to meeting coverage requirements. It’s an offering that reflects our commitment to helping organizations strengthen their security.”

The partnership strengthens ESET’s cyber resilience ecosystem by combining advanced Managed Detection and Response (MDR) capabilities with financial protection designed to help organizations recover more quickly from qualifying cyber incidents. Beyond warranty protection, the partnership expands ESET’s access to a broader ecosystem of insurers, brokers, managed service providers, incident response specialists and cyber-risk stakeholders, strengthening ESET’s ability to support customers throughout the cyber resilience lifecycle.

Through the partnership, all customers purchasing ESET PROTECT MDR or ESET PROTECT MDR Ultimate will automatically receive a cyber warranty valued at $500,000 or $1 million, depending on the selected tier. The warranty is activated upon purchase and when all the required cyber controls are enabled. The required cyber controls are designed to help customers reduce risk before an incident occurs, strengthening their overall security posture while providing the added assurance of warranty protection should a qualifying incident take place. Within 24 to 48 hours after discovering a breach, businesses can submit a claim to cover urgent breach-response needs, including hiring forensic firms, legal services, PR assistance, or replacing compromised hardware. Claims are managed through Cysurance’s streamlined process to help organizations access support quickly following a qualifying incident.

Customers will also gain access to Cysurance’s automated online portal, where they can optionally bind cyber insurance in minutes, without lengthy applications or questionnaires. Because ESET has been vetted and approved as a preferred vendor by Cysurance, policyholders receive deeply discounted rates—often as low as 60–80% off standard market premiums.

“ESET stands out because of the breadth and quality of its cybersecurity platform,” said Kirsten Bay, Co-Founder and CEO of Cysurance. “Its integrated approach to prevention, detection, and response makes it an ideal partner for our warranty and cyber insurance programs. Together, we are giving organizations confidence that they have both the technical protection to reduce risk and the financial protection to recover quickly when incidents occur.”

While available initially in the United States and Canada, the offering is expected to expand globally, aligning with Cysurance’s international capabilities and ESET’s worldwide footprint.

ESET MDR delivers 24/7 threat monitoring, detection, and response powered by advanced AI-powered technology and human expertise. Combined with the new cyber warranty offering from Cysurance, customers can benefit from both proactive protection and financial support designed to accelerate recovery from qualifying cyber incidents.

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

Ultra-fast high-accuracy threat scanner from ESET, now available in AWS Marketplace

  • ESET PRIVATE Scanning Solutions are now available in AWS Marketplace.
  • AWS Marketplace is a curated digital catalog where businesses can find, buy, and deploy third-party software, data products, and professional services that run on AWS. 
  • AWS customers can streamline the purchase and management of ESET PRIVATE Scanning Solutions within their AWS Marketplace account.  

BRATISLAVA — August 19, 2026 — ESET, a global leader in cybersecurity solutions, announced today that its ESET PRIVATE Scanning Solutions are now available in AWS Marketplace.

Customers increasingly expect seamless purchase and service options when seeking to procure products, and this is helping to establish AWS Marketplace as a primary commercial and deployment channel. AWS customers will now have access to ESET PRIVATE Scanning Solutions’ ultra-fast multilayered threat scanning directly within AWS Marketplace, and are able to streamline purchase and management within their AWS Marketplace account. This helps to reduce time-to-value and allows security and DevOps teams to deploy the solution faster.

“Today’s organizations expect security solutions they can evaluate quickly, purchase seamlessly, and deploy without delay. By making ESET PRIVATE Scanning Solutions available in AWS Marketplace, we’re simplifying procurement while enabling organizations to integrate high-performance threat scanning into their cloud applications to help protect critical data flows,” said Head of Corporate Solutions NORAM, Andrea Doyle. 

ESET PRIVATE Scanning Solutions’ static scanning engine scans large volumes of inbound data, providing real-time threat detection that scales dynamically with workloads. It enables organizations to inspect files before they are stored, shared, or processed. Built for accuracy, it uses advanced behavioral analysis to detect malware and zero-day threats, integrating into apps, storage platforms, upload portals, and others, to detect malware in milliseconds without requiring full endpoint security deployment. 

Visit AWS Marketplace to learn more and try our scanning solution for one month for free.

Discover the benefits of ESET PRIVATE’s tailored security line.

Learn more about ESET PRIVATE Scanning Solutions and its use case for enterprise data pipelines.

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET showcases cutting-edge AI Security at Black Hat 2026

LAS VEGAS — August 3, 2026 — ESET, a global leader in cybersecurity, today announced cutting-edge security AI solutions at Black Hat 2026 in Las Vegas, Nevada. ESET is expanding its AI capabilities across threat detection, investigations, threat protection, and security operations, delivering added value to customers through built-in innovations rather than separate add-on solutions.

“AI is a new class of actor inside the company – reading, writing, making decisions and executing. As such, it deserves the same security attention as users and endpoints, because it behaves like both at once,” said Kamil Pšenák, Senior AI Product Manager at ESET. “It is all converging around the endpoint. What used to be a neglected part of the cybersecurity stack is now primed to shine anew thanks to the proliferation of AI tools at a business level.”

As a pioneer in AI and machine learning for more than two decades, ESET has long used AI to strengthen threat prevention and detection. As organizations rapidly adopt AI tools and autonomous agents—often without IT oversight—ESET is expanding its portfolio to help customers secure AI itself, reducing the security and compliance blind spots created by shadow AI. Available September 30 across the ESET PROTECT portfolio, new features include:

  • ESET AI Agent Security: As autonomous AI agents access files, download components, call external services, use repositories, interact with code, or rely on skills and plugins, they may introduce malicious or compromised elements into the customer environment. AI Agent Security helps protect against this risk by inspecting AI-related components across the entire AI supply chain.
  • ESET AI Behavioral Monitoring: Where AI Agent Security helps inspect components and supply-chain activity, AI Behavioral Monitoring focuses on the behavior and actions of autonomous agents. It is designed to detect and block malicious or suspicious activity from AI agents, such as agents that attempt to access inappropriate resources, run unsafe actions, or behave outside the expected scope of their task.
  • ESET AI Conversation Security: Designed for organizations using generative AI tools, this capability helps reduce the risk of unsafe prompting or accidental data leakage by inspecting uploaded files and metadata for sensitive content. It also helps protect users from malicious AI-generated responses by flagging content originating from phishing, malicious, or unwanted websites.

Built on ESET’s best-in-class prevention system and decades of AI expertise, these new capabilities help organizations manage AI risk without adding complexity. ESET owns the technology, models, and intelligence behind these protections, embedding them directly into ESET AI Technologies rather than bolting on third-party solutions, or requiring customers to manage separate tools and platforms.

By extending protection to AI agents, behaviors, and conversations, ESET empowers channel partners and IT teams to secure the AI era and defend against emerging threats at scale through a single, unified solution that delivers stronger protection with less operational overhead and no additional cost.

“AI is changing the conversations our partners are having with customers,” said Ryan Grant, Country Manager, U.S. and Canada at ESET. “Instead of simply reacting to new AI risks, partners can lead with a prevention-first strategy that helps businesses adopt AI securely while reducing operational complexity. That’s a meaningful opportunity to deepen customer relationships and grow recurring security services.”

At Black Hat 2026, visitors to ESET’s booth #4917 can learn more about the company’s AI-driven cybersecurity innovations, threat intelligence and managed detection and response (MDR) capabilities. Throughout the event, ESET researchers, partners, product leaders and cybersecurity experts will present on the impact of AI on cybersecurity, real-world MDR incident response and how to build resilience through intelligence-led defense.

Highlights at Black Hat 2026 include:

  • Thursday, Aug. 6, 2:05–2:25 p.m. – Kamil Pšenák will present The Shock of AI Impact and How to Absorb It at Pulse Stage 5, examining how organizations can responsibly adopt AI while defending against emerging cyber threats.
  • Thursday, Aug. 6, 3:15–3:35 p.m. – Tony Anscombe will join Dark Reading panel discussion, Cyber Extortion Hacked, at Pulse Stage 5 to discuss the rise of data extortion attacks and practical response strategies.
  • Wednesday, Aug. 5, 3:00 p.m. & Thursday, Aug. 6, 1:00 p.m. – Celebrity book signing with Tanya Janca, internationally recognized application security expert, author, and founder of SheHacksPurple, featuring signed copies of Alice and Bob Learn Secure Coding while supplies last.
  • ESET x Intel: Intelligence-Led Defense – ESET’s Kamil Pšenák and Intel’s Tyler Welt will showcase how ESET PROTECT leverages Intel DTECT, using processor-level execution telemetry and AI models to identify sophisticated threats, alongside advanced Cloud Workload Protection capabilities that improve visibility, simplify security operations and transform SOCs from reactive to proactive.
  • Interactive experiences including the Cybersecurity Trivia Showdown and The Great Escape: Cyber Challenge, where attendees can test their cybersecurity knowledge and skills.

Discover more about ESET’s presence at Black Hat 2026. Learn more about AI and ESET.

 

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET Research discovers vulnerable UEFI shims undermining devices’ Secure Boot

  • ESET researchers discovered 11 old, Microsoft-signed, UEFI applications that allow bypassing UEFI Secure Boot on the majority of UEFI-based systems.
  • An attacker exploiting one of these vulnerable applications can execute untrusted code during system boot, enabling deployment of malicious UEFI bootkits or other malware.
  • Exploitation is not limited to systems with the affected software or Operation system (OS) installed, as attackers can bring their own copy of the vulnerable binaries to any UEFI system with the Microsoft third-party UEFI certificate enrolled.
  • All UEFI systems with Microsoft third-party UEFI signing enabled are affected (Windows 11 Secured-core PCs are expected to have this option disabled by default).
  • The vulnerable binaries were revoked by Microsoft.

BRATISLAVA — July 14, 2026 — ESET researchers discovered 11 vulnerable UEFI shim bootloaders signed by Microsoft that allow attackers to bypass UEFI Secure Boot by exploiting decade-old vulnerabilities. UEFI shim bootloaders are tiny bits of code designed to bridge the gap between motherboard UEFI firmware and an operating system. The vulnerable shims, at versions 0.9 and below, can be used to bypass UEFI Secure Boot on any UEFI-based machine that trusts the Microsoft Corporation UEFI CA 2011 third-party UEFI certificate authority (CA) certificate, regardless of the installed operating system. Reported shims can be exploited to execute untrusted code during system boot, enabling attackers to deploy malicious UEFI bootkits even on systems with UEFI Secure Boot enabled. ESET reported findings to CERT/CC; the vulnerable UEFI applications were then revoked.

The discovered shims come from various tools or software packages, including PC-diagnostic software, Linux distributions, and other UEFI-based utilities. Importantly, exploitation is not limited to systems with the affected software or OS installed, as attackers can bring their own copy of the vulnerable shims to any UEFI system with the Microsoft third-party UEFI certificate enrolled.

“What makes these old shims dangerous is not a novel vulnerability; it’s that no new vulnerability is needed to bypass UEFI Secure Boot. An attacker needs no complicated exploitation primitives – only a copy of an old, still-trusted, but unrevoked shim binary and a basic understanding of how UEFI shims work. That is enough to bypass such an essential security feature as UEFI Secure Boot,” says ESET researcher Martin Smolár, who discovered the vulnerable shims.

“To understand the impact that such vulnerable shims can have on UEFI Secure Boot-protected systems, in the report we examine a few specific issues in the reported shims – issues that are easily exploitable and that highlight the breadth of the attack surface they expose,” adds Smolár.

Over the years, the UEFI shim bootloader has naturally evolved, with new improvements and security features introduced in successive releases of the upstream UEFI shim repository. At the same time, many third-party vendors have taken available versions of the shim source code to build their own binaries, which they subsequently submitted to Microsoft for signing. This behavior is expected and aligns with the original design of shims. However, insufficient attention has been given to revoking outdated Microsoft-signed shims, many of which can, by design, be leveraged to bypass newer security mechanisms. 

These vulnerable shims can be blocked by applying the latest UEFI revocations from Microsoft. Windows systems should be updated automatically.  For Linux systems, updates should be available through the Linux Vendor Firmware Service. For more general recommendations regarding how to protect against (or at least detect) exploitation of unknown vulnerable signed UEFI bootloaders and deployment of UEFI bootkits, see ESET Research blogpost: Under the cloak of UEFI Secure Boot: Introducing CVE-2024-7344.

For a more details about the vulnerable UEFI shims, check out the ESET Research blogpost “Forgotten UEFI shims undermining Secure Boot” on WeLiveSecurity.com. Make sure to follow ESET Research on Twitter (today known as X), BlueSky, and Mastodon for the latest news from ESET Research.

Simplified UEFI boot flow on Linux systems

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET Threat Report: AI boosts cyber attackers’ efficiency

  • ESET Research has released its H1 2026 Threat Report with statistics from December 2025 through May 2026.
  • ClickFix – a social engineering technique leveraging fake error messages – has expanded into AI-themed help pages, browser extensions, and cloud authentication scenarios.
  • QR code phishing – also known as quishing – has reached record levels in ESET telemetry.
  • ESET analyzed nearly 900,000 AI skills – small functional components used by AI agents – and identified tens of thousands of suspicious and thousands of malicious instances. AI is also beginning to appear within malware.
  • Ransomware showed no signs of slowing down, with its continued use of EDR killers – tools designed to disable security software during attacks.
BRATISLAVA — July 8, 2026 — ESET Research has released its H1 2026 Threat Report, which summarizes threat landscape trends seen in ESET telemetry, as well as insights from ESET threat detection and research experts, from December 2025 through May 2026. The first half of 2026 shows how attackers continue to improve the efficiency and scalability of their operations. Artificial intelligence (AI) is playing a growing role in this development. ESET analyzed nearly 900,000 AI skills – small functional components used by AI agents – and identified tens of thousands of suspicious and thousands of outright malicious instances. AI is also beginning to appear within malware itself: ESET researchers have identified PromptSpy, the first known Android malware to use generative AI in its execution flow. “Rather than relying on entirely new methods and tools, attackers are quickly adapting established techniques to new platforms, technologies, and user behaviors. The number of AI skills within this new ecosystem is growing rapidly as we speak, further expanding the attack surface,“ says ESET Director of Threat Prevention Labs Jiří Kropáč. “On the other hand, PromptSpy illustrates the potential for increased flexibility in future threats – although guardrails against abuse included in LLMs are likely slowing down the adoption,” explains Kropáč. AI skills are small add-ons or sets of instructions that instruct an AI agent how to perform a specific task, including which services or tools to use and what data to access. The published report covers details about malicious AI skills using third-party hacking tools such as Mimikatz or Impacket and a suspicious self-modifying skills designed to create a persistence mechanism (JSON file) and a tool for self-modification (Python code). This can lead to unpredictable behavior of the agent or its abuse by an attacker. And finally, there are benign but problematic skills such as those marketed as security scanners, which create a false sense of security but implement only basic scanning techniques – like AV tools from the 1990s – or simply query the reputation of hashes, URLs, and IP addresses on VirusTotal. Meanwhile, ClickFix – a social engineering technique leveraging fake error messages – has expanded beyond fake CAPTCHA prompts into AI-themed help pages, browser extensions, and cloud authentication scenarios. AI-fix shows how adversaries exploit trust in generative AI, embedding ClickFix compromise chains into AI-generated troubleshooting content to nonexistent issues on pages that abuse domains of AI powerhouses. ConsentFix highlights an evolution toward token theft, combining ClickFix-style interaction with OAuth authorization abuse to hijack cloud accounts without the need to steal credentials, often bypassing MFA and relying entirely on legitimate login workflows. ESET detections of this vector more than doubled between H2 2025 and H1 2026, indicating sustained activity and adaptation. Phishing campaigns are also evolving in response to user behavior. QR code phishing – also known as quishing – has reached record levels in ESET telemetry, with attackers embedding malicious links in QR codes to bypass inspection and shift user interaction to mobile devices while exploiting the implicit trust many people place in the barcodes with square patterns. Approximately 11% of all detected phishing emails in H1 2026 utilized QR codes, and QR code phishing threats were most prevalent in the US (19% of detections), Spain (17%), and Mexico (6%). Last but not least, ransomware activity showed no signs of slowing down, with the continued use of EDR killers – tools designed to disable security software during attacks. ESET Research has documented over 100 different EDR killers used in the wild, with new variants appearing regularly. The number of ransomware attacks continued to grow in H1 2026, but the number of victims willing to pay reached all-time lows. Three recent industry reports confirmed this downward trend, reporting a 14–28% share of paying victims. For more information, check out the ESET Threat Report H1 2026 on WeLiveSecurity.com. Make sure to follow ESET Research on Twitter (today known as X), BlueSky, and Mastodon for the latest news from ESET Research.

Unique AI skills scanned by ESET systems per day, seven-day average

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET takes part in global Operation Endgame to disrupt Amadey botnet and Stealc infostealer

  • ESET took part in a coordinated global operation to disrupt Amadey and Stealc.
  • The disruption operation aimed to seize or render inoperative all known Amadey and Stealc C&C servers, directly disrupting the infrastructure relied upon by both MaaS offerings’ affiliates.
  • ESET Research provided technical analysis, statistical information, known C&C servers, encryption keys, campaign identifiers, and other insights.
  • In its report, ESET Research provides an overview of the MaaS ecosystem at the affiliate level for both malware families.

BRATISLAVA, PRAGUE — June 24, 2026 — ESET Research assisted in disrupting the Amadey botnet and the Stealc infostealer by providing technical analysis, infrastructure tracking, and affiliate-level insights. Both are operated as malware as a service (MaaS). The operation – coordinated by Microsoft Digital Crimes Unit (DCU), BitSight, Lumen, and Mitsui Bussan Secure Directions (MBSD) – targeted all known network infrastructure used by Amadey and Stealc affiliates in order to cripple their cybercriminal operations. At the same time, Europol’s European Cybercrime Centre (EC3), together with European law enforcement partners, including Germany’s Federal Criminal Police Office, and both the Dutch and Danish National Police, were investigating Stealc as part of Operation Endgame, alongside IBM and Proofpoint.

The ESET telemetry detection rate indicates that Amadey was observed globally without a specific regional focus. The highest detection rates were observed in India, Turkey, Egypt, Mexico, and Spain. Stealc, too, was distributed globally without a specific regional focus. The highest detection rates were observed in the United States, Poland, and Italy.

ESET contributed to the disruption by providing technical analysis, statistical information, known command and control (C&C) servers, encryption keys, campaign and build identifiers, and other threat intelligence collected during our long-term tracking of both malware families.

“ESET has been tracking both Amadey botnet and Stealc infostealer for the past three years. For the disruption operation, we shared statistics covering Q4 2025 to H1 2026, along with technical indicators and configuration data extracted from processed malware samples,” explains ESET researcher Jakub Tomanek, who assisted in the Amadey and Stealc disruption efforts. “Our automated systems have been dissecting Amadey and Stealc samples and identifying the fields most relevant for large-scale tracking. These include C&C servers, build identifiers, encryption keys, URL paths, campaign identifiers, and other embedded values used by the malware families during communication with attacker-controlled infrastructure,” he adds.

Sharing technical analysis, statistical information, and threat intelligence, such as C&C server lists, affiliate identifiers, and encryption keys, enables law enforcement agencies to identify, prioritize, and act against infrastructure with a high degree of confidence.

Amadey is a modular malware loader. Its main purpose is to distribute additional malware to compromised systems, although it also offers modules for data exfiltration and remote access. Stealc, in contrast, is typical infostealer as a service. It targets credentials, cookies, cryptocurrency wallets, browser extensions, and files matching affiliate-defined patterns.

Both malware families are sold as services and advertised on darknet forums. In both ecosystems, affiliates receive a self-hosted administration panel that must be deployed on their own server infrastructure. This requires a certain level of technical skill from affiliates, and gives them direct control over victim data and payload distribution.

While distribution methods ultimately depend on each individual affiliate, ESET telemetry consistently showed that both malware families were delivered through a wide range of channels. The most common methods included fake software updates, cracked software installers, and third-party malware loaders.

Amadey used a pay-per-rebuild model. Affiliates purchased a license and then paid an additional fee each time they needed to generate a new build (for example, when rotating to a new C&C server). In other words, Amadey operators did not provide affiliates with a builder tool; instead, samples were compiled on request for each affiliate. It offers three modules for further data exfiltration and access: a clipboard monitoring module, a credential theft module, and a VNC-based remote access module. The service is priced at USD 600 in Bitcoin for a single license, with an additional USD 50 charged per rebuild.

Stealc took a more affiliate-friendly approach, offering unlimited build generation as part of the subscription. This lowered the operational cost of rotating C&C infrastructure and made it easier for affiliates to generate new samples as needed. It targets a broad range of data sources, including credentials stored by web browsers, email clients, FTP clients, gaming platforms, cryptocurrency wallet files, and browser extensions. Stealc is sold as a monthly subscription with the cheapest subscription for 1,000 USD per six months.

Trying to avoid impersonation scams, both operators explicitly instructed prospective affiliates on darknet forums to contact them only through official channels. Amadey directed buyers to private messages on the darknet forum where it is advertised, while Stealc used private messages on darknet forums or Telegram.

ESET will continue to monitor both families and track any attempts to rebuild operational infrastructure following the disruption.

For more details about Amadey and Stealc disruption, check out the ESET Research blogpost, “ESET takes part in global operation to disrupt Amadey and Stealc,” on WeLiveSecurity.com. Make sure to follow ESET Research on Twitter (today known as X), BlueSky, and Mastodon for the latest news from ESET Research.

Distribution of Amadey – detection heatmap (2025-present)

Distribution of Stealc – detection heatmap (2025-present)

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

ESET Research investigates Gentlemen ransomware gang and its defense-evasion tools

  • Gentlemen operators develop and maintain an EDR-killer suite provided directly to affiliates.
  • GentleKiller, an in-house framework, has at least eight variants abusing different vulnerable or malicious drivers.
  • Gentlemen operators apply a unified evasion strategy across tools to standardize impersonation and protection.
  • Third-party EDR killers (HexKiller, ThrottleBlood, and HavocKiller) are operationally integrated.
  • The gang’s victimology is globally distributed and notably not US focused.
BRATISLAVA, PRAGUE — June 18, 2026 — ESET researchers analyzed the robust EDR-killing toolset of the ransomware-as-a-service (RaaS) gang Gentlemen. Since the beginning of 2026, Gentlemen has emerged as one of the most active gangs in the ransomware ecosystem. The group distinguishes itself through a mature, operator-maintained set of endpoint detection and response (EDR) killers — tools for disrupting security software. Additionally, unlike most top-tier gangs, Gentlemen does not exhibit a strong US-centric victimology, instead targeting victims across Southeast Asia, South America, and Western Europe. The gang’s targeting includes some otherwise rarely targeted countries like Thailand, Brazil, and France. “While there have been multiple reports covering Gentlemen in recent months, they have not focused on a detailed analysis of the group’s EDR killers. Thanks to ESET’s continued incident-level visibility, we can provide a uniquely deep view into Gentlemen’s EDR-killer development practices. The internal data leak that Gentlemen suffered in May 2026 gave us more insight into the inner workings of the group,” says ESET researcher Jakub Souček, who tracks EDR killers. “The leak also allowed us to confirm the hypothesis we formed in February 2026: that Gentlemen operators actively develop and maintain a portfolio of EDR killers that they offer to affiliates, centered around their in-house framework, which we have named GentleKiller.” Additionally, the group incorporates third-party or leaked tools such as HexKiller, ThrottleBlood, and HavocKiller. These tools are standardized through a shared defense-evasion layer, impersonating predominantly security vendors by using fake version information and copied legitimate certificates and icons. Gentlemen also demonstrates an ability to unusually quickly operationalize newly disclosed Bring Your Own Vulnerable Driver proofs-of-concept, often within days of public release. Apart from the EDR killers, we also identified a credential stealer we named OxideHarvest; this tool was developed by one of Gentlemen’s affiliates. For context, Gentlemen emerged in late 2025 as a RaaS operation and quickly grew into one of the most active ransomware gangs observed in Q1 2026. The gang offers a generous 90% share to affiliates. Gentlemen utilizes double extortion — in addition to encrypting the victim data, the group also threatens to leak the data if the ransom is not paid. One of the things that sets Gentlemen apart is the gang’s willingness to offer more than just encryptors to affiliates — in particular, the gang also provides EDR killers. Gentlemen represents a different, and so far underreported, approach. Rather than relying on affiliates to source their own EDR killers, Gentlemen operators actively develop and maintain a portfolio of EDR killers for affiliates. While the victimology of large RaaS operations is often shaped more by affiliates’ choices than by operator-led strategy, one particular pattern still tends to emerge. Most major ransomware gangs show a strong and persistent focus on the United States, which frequently accounts for roughly half of all announced victims. Gentlemen stands out as a notable exception to this trend. Despite ranking among the five most active ransomware gangs in Q1 2026, its victimology does not exhibit a comparable US focus. Instead, Gentlemen affiliates consistently target victims across a broad and geographically diverse range of countries, with a significant number of victims coming from regions such as Southeast Asia, South America, and Western Europe. Gentlemen operators apply a specific set of defense evasion techniques to the gang’s various EDR killers. These techniques are applied to compiled samples rather than source code. This gives Gentlemen the option to also protect the EDR killers whose source code the gang does not possess. GentleKiller is by far the most prevalent EDR killer observed in the Gentlemen ecosystem. To date, ESET Research has discovered eight distinct variants, each impersonating a different legitimate product and abusing a different vulnerable or malicious driver. Despite these surface-level differences, ESET classifies all of these samples under the GentleKiller umbrella due to a high degree of shared internal characteristics. “From a defense perspective, understanding how GentleKiller works allows defenders to better design their defensive strategies and defend even against yet-to-be-developed additions to Gentlemen’s EDR-killing arsenal,” concludes Souček. For a more details about Gentlemen’s EDR killers, check out the ESET Research blog post “Killing me gently: Inside Gentlemen’s EDR killer framework” on WeLiveSecurity.com. Make sure to follow ESET Research on Twitter (today known as X), BlueSky, and Mastodon for the latest news from ESET Research.  

About ESET
For 30 years, ESET® has been developing industry-leading IT security software and services for businesses and consumers worldwide. With solutions ranging from endpoint security to encryption and two-factor authentication, ESET’s high-performing, easy-to-use products give individuals and businesses the peace of mind to enjoy the full potential of their technology. ESET unobtrusively protects and monitors 24/7, updating defenses in real time to keep users safe and businesses running without interruption. Evolving threats require an evolving IT security company. Backed by R&D facilities worldwide, ESET became the first IT security company to earn 100 Virus Bulletin VB100 awards, identifying every single “in-the-wild” malware without interruption since 2003.

About Version 2 Limited
Version 2 Digital is one of the most dynamic IT companies in Asia. The company distributes a wide range of IT products across various areas including cyber security, cloud, data protection, end points, infrastructures, system monitoring, storage, networking, business productivity and communication products.

Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 offers quality products and services which are highly acclaimed in the market. Its customers cover a wide spectrum which include Global 1000 enterprises, regional listed companies, different vertical industries, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.