GREYCORTEX is happy to announce that beginning January 1st, Alena Řezníčková will be the new Area Manager for the Czech Republic and Slovakia. Řezníčková has been working in the IT security field since 1992. She has held business and managerial positions in several well-known Czech and international companies, including AEC, ASSECO, PCS, ANECT, McAfee, and Intel Czech Tradings. Prior to assuming the Area Manager role, she worked with GREYCORTEX for several months as an external consultant.

“During the time I have worked with the GREYCORTEX team, I’ve seen for myself that MENDEL, the GREYCORTEX solution for network security monitoring, is a unique product with great potential. The GREYCORTEX team is made up of committed and determined professionals with great personal qualities. It is fascinating to continually experience the “wow effect” when presenting MENDEL to customers and visualizing their networks; since, with MENDEL, they can see what is happening inside their infrastructure. Our clients and customers appreciate that they are part of the team in terms of discussions about our road map and the development of the solution. I can see my main mission in these two areas: strengthening the partner channel and expanding the partner network, including the full lifecycle of cybersecurity management, further leveraging experience and customer needs to develop our solutions,” said Řezníčková.

GREYCORTEX CEO, Petr Chaloupka added: “Alena has many years of experience working in companies offering cyber security solutions and in managing business teams. In previous positions, especially as Country Manager of McAfee (later Intel), she managed to build mutually beneficial partnerships with technology companies in the Czech Republic and Slovakia. I appreciate her involvement in the activities of the Czech branch of AFCEA and long-term relationships with key personalities of IT security.”


Brno, Czech Republic

GREYCORTEX is happy to announce that we have won the 2019 EY Cybersecurity Trophy (EY ESO) in the Cybersecurity Space Innovation category. The winners were announced at an awards ceremony in Bratislava, Slovakia on December 10, 2019.
EY, whose motto is “Building a better working world,” has identified the need for greater focus on cybersecurity. Based on many years with the world’s leading consulting firms, competition founder Peter Borák, has good reason to emphasize cybersecurity. Due to the increasing frequency of cyber-attacks, extremely sensitive data is leaked, and risks increase every year. “Our primary concern is to help organizations make better decisions on very complex cybersecurity issues. With faster digitization, the risk is accelerating. All organizations should take care about their data protection,” said Borák.

In its Global Information Security Survey, EY recommends that cyber security and surveillance be included in the structure of every organization. EY’s main goal is not only to draw attention to the problem and to inform the professional and general public about the cyber security issues, but also to offer solutions and a wider understanding of the context of the problem. This is why EY recognizes innovative cybersecurity companies and ethical hackers with these awards.
Petr Chaloupka, CEO of GREYCORTEX, noted after receiving the award: “Cybercriminals now run on huge budgets and are constantly improving their procedures. This is the reason why cybersecurity analysts also need to have state-of-the-art technology to defend themselves effectively. Today, it is no longer possible to manually analyze all traffic in each individual private or state organization, to monitor all possible attack vectors, or eliminate all human failures. That’s why advanced technologies, machine learning, and artificial intelligence are on the scene to help with this defense.” Thanks to the integration of these principles into our MENDEL product, GREYCORTEX was included in Gartner’s 2019 Market Guide for Network Traffic Analysis.

This year, the EY ESO winners are Rastislav Klč in the EY ESO Chief Information Security Officer category, Tomáš Ležovič as EY ESO DNA Born Ethical Hacker, GREYCORTEX s.r.o. as the EY ESO Cyber Security Space Innovation, and Milan Kyselica as the winner of the EY ESO Security Future Promise, as well as overall winner.

EY ESO photo


On January 18, GREYCORTEX joined the Microsoft Cybersecurity Tech Accord along with 10 other companies. This brings the total to 79 signatories committed to improving the security of cyberspace. Together, GREYCORTEX and the rest of the Tech Accord members pledge to protect users and customers everywhere. GREYCORTEX joins a global expansion, contributing to the increasingly diverse reach of the signatory community – further broadening the dialogue around cybersecurity with signatories from Argentina, Bulgaria, Chile, the Czech Republic, Germany, Luxembourg, The Netherlands, Slovakia, and the United States, expressing a commitment to a more secure cyberspace. This expansion continues to deepen the group’s expertise, adding to the variety of sectors and technologies that characterize the organization.
“As a company focused on the development of network security solutions, we couldn’t agree more strongly that defense, regardless of the type or goal of the threat, is essential to defend the world from cyberattacks. Moreover, we firmly believe that governments and enterprise should act defensively, and that such defense should be both simple and complete. We are happy to be part of the Cybersecurity Tech Accord,” said Petr Chaloupka, GREYCORTEX CEO.
By joining the agreement, the signatories agree to four key commitments:
a stronger defense against cyberattacks – pledging to protect all customers globally regardless of the motivation for attacks online;

  1. a stronger defense against cyberattacks – pledging to protect all customers globally regardless of the motivation for attacks online;
  2. taking no offense by choosing not to help governments launch cyberattacks against innocent citizens and enterprises and will protect against tampering or exploitation of their products and services through every stage of technology development, design and distribution;
  3. doing more to empower developers and the people and businesses that use their technology, by helping them build and improve capacity for protecting themselves; and
  4. building on existing relationships and taking collective action together to establish new formal and informal partnerships with industry, civil society and security researchers. The goal being to improve technical collaboration, coordinate vulnerability disclosures, share threats and minimize the potential for malicious code to be introduced into cyberspace.

Since forming the Cybersecurity Tech Accord, the signatories have supported initiatives on email and routing security, implemented Domain-based Message Authentication, Reporting and Conformance (DMARC) in their own operations, participated in global requests for comments on the UN’s new High Level Panel on Digital Cooperation, and endorsed the Paris Call for Trust and Security in Cyberspace as an early supporter. Additionally, the group has coordinated with like-minded organizations such as the Global Cyber Alliance, the Internet Society, and the Global Forum on Cyber Expertise (GFCE).


IT-SA is Europe’s leading trade fair for IT security. Held in the German city of Nuremberg over October 9-11, it features over 630 presenters in three halls, in diverse areas like mobile, cloud, network, and data security. It also offers an additional day of expert speakers in the field of IT Security. GREYCORTEX will attend for the second time attending the show.

If you’re going, make sure to stop by our booth in Hall 10.1 / 10.1-408, and ask Michal Srubar, Pavel Chmelar, and Irina Milshina how MENDEL’s advanced detection, deep visibility, and quick response features can secure your network.

You can find our profile here and floor plan here.


GREYCORTEX is happy to announce that we have been selected to be part of the 2018 EY Accelerating Entrepreneurs program. This event, which happens in Amsterdam between the 21st and 24th of April, 2018, brings together companies selected as among the most innovative and advanced, worldwide.  In addition to being one of only 30 companies selected to attend, GREYCORTEX is also the first Czech company in the history of the program to be selected.

As the EY press release notes: “The 2018 class of entrepreneurs represent dynamic businesses that focus on innovative and disruptive fields like artificial intelligence (AI), augmented reality, virtual reality (VR), customer interface, analytics, robotics and the Internet of Things (IoT).”

According to Annette Kimmitt, EY Global Growth Markets Leader, “… This year’s class is already solving big challenges, disrupting their markets and have cutting-edge technologies. We want to prepare these transformative entrepreneurs to expand from their local markets to a position of navigating and leading the world by pursuing their global growth objectives.”

We’re looking forward to joining the other 29 companies and accessing the wealth of information available from EY.


GREYCORTEX is happy to announce that we have successfully entered the Japanese market with our first office outside of Europe, and first Japanese partner and customers.

The new GREYCORTEX office, located in Kobe, Japan, will focus on sales and service across the APAC region. It will be led by Milan Fujita, who brings nearly 20 years of experience in the software sector and the Japanese and APAC markets. The office will also coordinate the regional collaboration between GREYCORTEX and its regional ESET technology alliance partners. The office may be contacted at: Kobe Fashion Mart 10F, 6-9 Koyo-cho Naka, Higashinada-ku Kobe, Hyogo, Japan 658-0032.

GREYCORTEX is also happy to announce our first partner in Japan: iSEC. Information Security Inc. Based in Kobe City, iSEC is led by CEO Yoshihisa Suzuki. iSEC offers the MENDEL Network Traffic Analysis throughout the country. The relationship is already bearing fruit, with two customers implementing GREYCORTEX MENDEL; Hyogo Prefectural Government ( and University of Hyogo (

We look forward to many years of success from these relationships.


GREYCORTEX is happy to announce that we, represented by Petr Chmelar, Chief Research Officer, successfully participated as a member of the Situational Awareness (Yellow) Team in the recent “Crossed Swords 2018” cyber defense training exercise, held in Latvia and organized by the NATO Cooperative Cyber Defense Centre of Excellence (CCDCOE) in cooperation with CERT.LV.

The sister event to the larger NATO CCDCOE “Locked Shields” cyber defense exercise (the largest and most complex live-fire cyber defense exercise in the world), “Crossed Swords” is focused on practicing skills required to carry out responsive tactical cyber operations. “The exercise aims to practice skills required to fill the role of the Red Team at cyber defence exercises and to offer the most cutting-edge and challenging training experience for national cyber defenders. It is evident that in order to defend ourselves better in cyberspace, we need to know how attacks are carried out,” explained Aare Reintam, Project Manager of Technical Exercises at the NATO CCDCOE. The “Crossed Swords 2018” event included a group of more than 80 cybersecurity professionals from 15 countries.

In this year’s exercise, the Red Team was tasked with conducting a full spectrum cyber operation in a fictional scenario, while the Blue Team actively defended their assets. The Yellow Team monitored Red Team activity from different sources of information, such as network tap and host-based log files, and provided a highly valuable near real-time feedback. As part of the exercise, GREYCORTEX contributed features to “Frankenstack,” a novel stack of tools built by NATO CCDCOE, Tallinn University of Technology, CERT.LV, and industry partners.

GREYCORTEX’s experience didn’t end with the end of the training exercise. Inspired by “Crossed Swords,” GREYCORTEX renamed its Malware Lab research team to the “Red Team,” but as Petr Chmelar noted, “We will always be Yellow Team-focused.”


GREYCORTEX became a new member of the non-profit Association, EUCYBSEC (European Cyber Security Excellence Center). Interests of the Association are cybersecurity and protection of SCADA systems. EUCYBSEC is aiming to create a communication space, where commercial, state and academic specialists can freely interact and share their knowledge. Thanks to EUCYBSEC membership, GREYCORTEX gets an opportunity to participate in professional events organized by the Association.

About Version 2 Limited
Version 2 Limited is one of the most dynamic IT companies in Asia. The company develops and distributes IT products for Internet and IP-based networks, including communication systems, Internet software, security, network, and media products. Through an extensive network of channels, point of sales, resellers, and partnership companies, Version 2 Limited 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, public utilities, Government, a vast number of successful SMEs, and consumers in various Asian cities.

GREYCORTEX uses advanced artificial intelligence, machine learning, and data mining methods to help organizations make their IT operations secure and reliable.

MENDEL, GREYCORTEX’s network traffic analysis solution, helps corporations, governments, and the critical infrastructure sector protect their futures by detecting cyber threats to sensitive data, networks, trade secrets, and reputations, which other network security products miss.

MENDEL is based on 10 years of extensive academic research and is designed using the same technology which was successful in four US-based NIST Challenges.


Cybercrime is evolving at drammatic speed and at every moment, hackers and attackers are figuring out new strategies to compromise organizations and industries. The cybersecurity sector must not fall behind these attackers.

But the number of technologies claiming to create cybersecurity is vast. Organizational spending and reallocating investments to the right network security sector can help reduce cost of cyber breaches. A recent report produced by Accenture, with an independent survey by the Ponemon Institute indicates that among the higher-valued security technologies per cost; machine learning tools and extensive use of cyber analytics and user behavior analytics, have a high return on investment – in other words, they can bring a greater security benefit for a lower cost. Yet, conversely, Accenture reports that these high value technologies are under-deployed compared to other tools in the marketplace.

MENDEL, from GREYCORTEX makes extensive use of machine learning and behavior analytics to identify cyber threats, protecting the network from attacks which would be unknown and unseen by other security tools.

To find out more about MENDEL’s machine learning technology can help you, or to schedule a demonstration, contact your local GREYCORTEX partner, or GREYCORTEX directly.

With this findings comes opportunity to focus on the right technology to protect a company’s assets.

Study and images are found in the following study:


GREYCORTEX is happy to announce that CEO and Co-Owner Petr Chaloupka was named to the New Europe 100 (NE100). The list is made up of individuals selected by the Financial Times, Google, the Visegrad Fund, and Res Publica.

Now in it’s fourth year, the 2017 New Europe 100 “is a list of central and eastern Europe’s brightest and best citizens who are changing the region’s societies, politics, or business environments and displaying fresh approaches to prevailing problems. The aim is to raise the profile of changemakers in emerging Europe and to build connection among those in the vanguard.”

Previous editions of the NE100 have included such well-known business leaders as Vaclav Muchna, CEO of Y Soft.

You can read more about the NE100 here:,5a166ff03228719568984a76