About us
Connecting people, technology and risk management.
We are 4Cyber. A technology company developing a platform for employee training, Human Risk Management and compliance.
We connect cybersecurity and AI training, phishing simulations and Human Risk Management. We help companies identify risky behaviour, work with risk groups and follow up with targeted training.
In GRC — governance, risk and compliance — we connect rules and obligations with progress tracking, training records and audit documentation.
Companies can create additional training in Studio, or we can build it to their needs. From occupational safety and driver training to internal procedures. All in one platform.
Train. Test. Manage risk.
Employee training
Practical training, scenarios and tests. Ready-made content and your own training created in Studio.
Human Risk Management
Phishing simulations, assessment of risky behaviour and targeted work with employee groups.
GRC and compliance
Connecting rules, obligations and risk management. Clear records and audit documentation.
Our clients










Our team
Lukáš Pirkl
Co-founder
Lukáš is an experienced sales professional with many years of expertise in IT, strategic management, and entrepreneurship. As a former CEO of a publicly traded IT company, he achieved outstanding results. His ability to build business strategies, establish key partnerships, and lead teams to success is invaluable.
When Lukáš is passionate about something, nothing can stop him. He is a relentless closer who, thanks to his dynamic approach, masters business negotiations and always brings opportunities to a successful conclusion.
With his experience and deep market knowledge, Lukáš plays a crucial role in driving our company’s continuous growth.
Jiří Sommer
Co-founder
Jiří has built extensive experience in IT and business both in the Czech Republic and abroad, thanks to nearly a decade of entrepreneurship and consulting. His approach is clear — no situation is a problem; there is always a solution.
With a precise focus on results, he effectively analyzes complex situations and finds optimal strategies to resolve them. His ability to quickly adapt to changes and meet new challenges allows him to deliver practical and efficient solutions.
In recent years, Jiří has been active in IT and systems solutions, bridging business and technological needs with a clear goal — achieving maximum impact.
David Pirkl
Co-founder & Ethical hacker
David is a top cybersecurity expert with deep technical knowledge and extensive experience in IT. He specializes in designing and managing security architectures, penetration testing, and protecting IT systems against the latest threats.
He holds the highest international certifications in ethical hacking, including CompTIA PenTest+, Security+, and many others that confirm his expert knowledge and ability to effectively combat cyber threats.
David’s analytical thinking, precision, and skill in identifying vulnerabilities, combined with practical experience in data analysis and IT project management, make him a key member of our team.
He continuously monitors current cyber threats, implements advanced security strategies, and collaborates closely with development and IT teams to ensure robust protection of company systems.
Thanks to his flexibility, independence, and proactive approach, David is not only a reliable expert but also a driving force of innovation in cybersecurity.
Martin XXX
Physical Security and Crisis Management Specialist
Martin is an exceptional expert and elite security specialist. He began his career as a soldier and special forces commander, participating in several demanding missions, including deployments in Afghanistan.
Building on this experience, Martin now focuses on physical security audits and assessments, risk analysis, and penetration testing in the civilian sector. He designs and manages the implementation of comprehensive security systems — from CCTV and access control to detection technologies, perimeter protection, and biometric identification.
He also conducts employee training, especially in emergency and crisis management, and assists in developing security and crisis plans and strategies.
His responsibilities include overseeing personnel security, including recruitment, training, and supervision of security staff.
Martin holds a “Secret” level security clearance issued by the National Security Authority, enabling him to work on the most sensitive and highly secured projects.
Ing. Dominik Štursa, Ph.D.
AI Consultant
Dominik is a recognized expert in artificial intelligence, specializing in system security and advanced image processing techniques. He works at the Faculty of Electrical Engineering and Informatics at the University of Pardubice, focusing on research and development of AI algorithms with real industrial impact.
Throughout his academic career, he has contributed to innovative solutions such as person motion detection, polymer classification, and optimization of gripping points for robotic workstations.
Dominik is the author of numerous technical publications and actively contributes to advancing AI technologies in industrial applications.
His approach combines theoretical depth with practical applicability, making him a key figure in AI research and implementation.
Ing. Luboš Trojan
Cybersecurity Auditor
Pawel Bujnowski
Country Director Poland & Strategic Business Development
Paweł is an experienced business manager with more than a decade of expertise in business development, sales management, and expansion into new markets. Throughout his career, he has successfully developed business activities, built strategic partnerships, and achieved significant revenue growth across various industries, including IT, green tech, automotive, and industrial manufacturing.
Thanks to his deep understanding of the Polish market, extensive network of contacts, and ability to open new business opportunities, he represents a key asset for the expansion of 4Cyber in Poland. His strategic approach, results-oriented mindset, and ability to turn business opportunities into successful outcomes contribute significantly to the company’s continued growth.