Christos Voutselas

Christos Voutselas is a cybersecurity professional, technologist, and community organizer with a strong focus on defensive security, OSINT, threat analysis, and applied security engineering.

Throughout his career, Christos has worked across multiple areas of cybersecurity, including incident response, security operations, threat detection, and security program development.

Beyond his professional work, Christos is deeply involved in the cybersecurity community as the founder and organizer of BSides Bratislava.

Tomas Kirnak

Tomas, Founder / CEO at NetCore j.s.a. Unimus, has been working in IT for over 20 years, specializing in infrastructure automation, monitoring and security.

From designing networks for some of the largest US Telcos, to monitoring and security solutions for nation-wide banks, all the way to writing software for infrastructure automation.

Tomas has many stories about running and securing critical infrastructure in real-world scenarios.

Apostolos Gkletos

Apostolos Gkletos has worked in cybersecurity since 2017, building a strong background in Security Operations Centers and digital forensics.

Apostolos is currently the R D Cybersecurity Team Leader at European Dynamics S.A., where he leads the company’s cybersecurity activities in EU research projects such as NG-SOC, XTRUST-6G, and DOME Marketplace.

Petros Mantzoukas

Petros was born and raised in Athens, Greece, and has been living in Bratislava, Slovakia for the past eleven years. He began his career as a Network Engineer at AT T.

For the past four years, he has been part of Takeda, where he leads a global 24/7 team of cybersecurity analysts responsible for responding to cyber threats across both IT and OT environments.

He is passionate about incident response, cybersecurity operations, and continuous learning.

Richard Mader

Richard Mader is the founder of SPARK42, a cybersecurity company specializing in offensive security and Threat-Led Penetration Testing.

He brings over 20 years of experience in IT, covering system administration, architecture, and security leadership roles.

Nikita Bohuslavskyi

Nikita works as a Penetration Tester at Siemens Healthineers, where he assesses the security posture of a wide range of assets, from web applications to hardware devices.

Outside of his professional role, Nikita actively participates in Bug Bounty programs and conducts independent security research within the Application Security field.

Nikita is also an active Capture The Flag competitor as part of the Slovak National Cyber Team.