About us
4cyber.cz was founded with a clear mission – to protect companies from cyber threats and elevate their security to a higher level. We combine expert knowledge with hands-on experience in IT, business, and cybersecurity.
Our team consists of certified professionals in ethical hacking and security audits. We’ve helped shape security strategies for leading companies and understand both real-world threats and effective countermeasures. We monitor technology trends, analyze risks, and develop solutions that provide businesses not only with protection but also with a competitive edge.
Cyberattacks are constantly evolving – and so are we. We focus on innovation, in-depth analysis, and a personalized approach to each client. We don’t wait for attacks to happen; we prevent them.
Hands-on cybersecurity education
In addition to protecting companies, we place great emphasis on employee education. We’re developing an interactive e-learning platform that boosts cybersecurity awareness in a fun and effective way. Thanks to gamification and expert guidance from ethical hackers, employees gain practical skills they can apply immediately.
Security isn’t a choice – it’s a necessity. With us, it’s under control.
Comprehensive Services
From training and audits to testing, consulting, and NIS2 Compliance.
From training and audits to testing, consulting, and NIS2 Compliance.
Practical Approach
We focus on real threats and specific security measures that your employees can actually use.
Expert Team
Our cybersecurity specialists have years of experience and help companies protect their data
Lukáš Pirkl
Co-founder
Lukáš is an experienced salesman with many years of experience in IT, strategic management, and entrepreneurship. As a former CEO of a publicly traded IT company, he achieved outstanding results, and his ability to build business strategies, establish key partnerships, and lead teams to success is invaluable. When he gets passionate about something, nothing can stop him. He is a relentless closer, perfectly handling business negotiations and always bringing opportunities to a successful conclusion thanks to his dynamic approach. With his experience and deep market knowledge, he helps our company continue to grow.
Jiří Sommer
Co-founder
Jiří has built extensive experience in IT and business both in the Czech Republic and abroad, thanks to nearly ten years 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 is able to effectively analyze complex situations and find optimal strategies for solving them. His ability to quickly respond to changes and adapt to new challenges enables him to provide practical and effective solutions. In recent years, he has been active in IT and systems solutions, where he connects business and technological needs with a clear goal – to achieve maximum results.
David Pirkl
Co-founder & Ethical hacker
David is a top expert in cybersecurity with deep technical knowledge and extensive experience in IT. He specializes in designing and managing security architectures, penetration testing, and protecting IT systems from the latest threats. He holds the highest international certifications in ethical hacking, including CompTIA PenTest+ and Security+, as well as many others, confirming his expert knowledge and ability to effectively counter cyber threats. His analytical thinking, precision, and ability to identify vulnerabilities, combined with practical experience in data analysis and IT project management, make him a key member of our team. He constantly monitors current cyber threats, implements advanced security strategies, and works closely with development and IT teams to ensure robust protection of corporate systems. With his flexibility, independence, and proactive approach, he is not only a reliable expert but also a driving force for innovation in cybersecurity.
Tereza Malzová
Operations Manager
Tereza is an indispensable pillar of our team, significantly contributing to the smooth operation of the company. Her expertise in administration, financial management, and corporate systems is crucial for efficient process management and operational optimization. With her precision, analytical thinking, and organizational skills, she not only ensures the smooth running of corporate agendas but also actively contributes to development and strategic management. Her ability to coordinate internal and external collaborations with professionalism and confidence makes Tereza an irreplaceable part of our success.
Ing. Luboš Trojan
Cybersecurity Auditor
Luboš is a top expert with more than twenty years of experience in IT auditing, risk management, and information security. With his deep knowledge and analytical approach, he helps organizations strengthen their cybersecurity resilience and ensure the highest security standards according to international norms, including ISO 27001 and PCI DSS. His strategic thinking, precise planning, and ability to lead teams make him an indispensable support for companies looking to minimize risks and protect their critical infrastructure. Through his audits and training, he significantly contributes to enhancing security and the effective management of information systems.
Ing. Dominik Štursa, Ph.D.
AI Consultant
Dominik is a recognized expert in the field of artificial intelligence, specializing in system security and advanced image processing methods. He works at the Faculty of Electrical Engineering and Informatics at the University of Pardubice, where he focuses on research and development of AI algorithms with real industrial impact. In his academic career, he works on innovative solutions such as personal motion detection, polymer classification, and optimization of gripping points for robotic workstations. He is the author of several professional publications and actively contributes to the development of AI technologies in industrial practice. His approach combines theoretical depth with practical applicability, making him a key figure in AI research and implementation.
Pavel XXX
Specialist in Physical Security and Crisis Management
Pavel is an exceptional expert and elite security specialist. He began his career as a soldier and commander of special forces with deployments in several challenging missions, such as in Afghanistan. He builds upon these experiences in the civilian sector, focusing on physical security audits and assessments, risk analysis, and penetration testing. He designs and manages the implementation of complex security systems—from CCTV systems and access control technologies to perimeter protection and biometric identification. He also conducts employee training, especially in managing extraordinary and crisis situations, and helps create security and crisis plans and strategies. His work also includes managing personnel security, including recruitment, training, and overseeing security staff. Pavel holds a security clearance at the "Top Secret" level issued by the National Security Office, enabling him to contribute to the implementation of the most sensitive and secure projects.
