Join us on May 16th, 2026, in Bratislava, Slovakia, for a community-driven Information Security conference. 100% volunteer-organized, fostering open knowledge sharing beyond commercial events.

About our event
BSidesBA is a community-driven Information Security conference based in Bratislava.
It is a 100% volunteer-organized event with the aim to provide a place to openly share knowledge among the Information Security community and provide an alternative to commercial conferences in Slovakia.
Meet our speakers

Tomas 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.
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 has worked in cybersecurity since 2017, building a strong background in Security Operations Centers and digital forensics. Formerly a Cybersecurity Engineer for the Hellenic Navy SOC, he has hands-on experience in SOC architecture, incident response, SIEM engineering, and day-to-day cyber defence operations. 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, with a focus on next-generation SOC capabilities and trusted digital infrastructures. He is based in Greece and actively contributes to the broader European cybersecurity ecosystem.

Diyar Saadi Ali is a cybersecurity expert specializing in cybercrime investigations, SOC operations, and malware analysis. A certified MITRE ATT&CK Contributor and CVE discoverer (including CVE-2024-25400 and CVE-2024-25399), Diyar helps organizations defend against evolving digital threats. They have spoken at major international events including BlackHat MEA in Saudi Arabia, DeepSec in Vienna, COSAC in Ireland, VulnCon in India, and Arab Cyber Security Conference in Egypt. Diyar’s expertise and global experience continue to inspire and lead in the cybersecurity community.

Richard Mader is the founder of SPARK42, a cybersecurity company focused on offensive security and threat-led penetration testing (TLPT). He has over 20 years of experience in IT, spanning system administration, architecture, and security leadership, with the last years dedicated primarily to security assurance, vulnerability management, and adversary-driven testing.
Richard holds multiple industry certifications, including CISSP, CISA, CEH, and Auditor kybernetickej bezpečnosti (AKB). His professional focus lies at the intersection of real-world attack techniques, regulatory expectations (DORA, NIS2), and the practical limitations organizations face when trying to implement advanced security testing programs. Through SPARK42, he works with organizations to translate threat intelligence and regulatory pressure into actionable, realistic security testing.

Christos Voutselas is a cybersecurity professional, technologist, and community organizer with a strong focus on defensive security, OSINT, threat analysis, and applied security engineering. With extensive hands-on experience across security operations, incident analysis, and custom tooling, his work bridges the gap between real-world security challenges and practical, actionable solutions.

I was born and raised in Athens, Greece, and for the past eleven years I've been living in Bratislava, Slovakia. My career began as a network engineer at AT&T, where I spent three years building my technical foundation. I then moved into cybersecurity, joining EPICOR as a cybersecurity analyst for another three years, gaining hands-on experience defending enterprise environments.
For the last four years, I've been with Takeda, where I lead a global, 24x7 team of cybersecurity analysts. Together, we respond to cyber threats that impact both our IT and OT environments, protecting critical systems and data around the clock.
I'm passionate about incident response and continuous learning.
For the last four years, I've been with Takeda, where I lead a global, 24x7 team of cybersecurity analysts. Together, we respond to cyber threats that impact both our IT and OT environments, protecting critical systems and data around the clock.
I'm passionate about incident response and continuous learning.

Nikita works as a penetration tester at Siemens Healthineers, assessing the security posture of various assets, ranging from web applications to hardware devices.He seeks to exploit quirky behaviors to uncover interesting vulnerabilities and leverage them in a full exploit chain. In his free time, Nikita focuses on Bug Bounty Hunting, contributing to the security of several companies, and conducting security research within the AppSec field. His research primarily focuses on parsing, encodings, and identifying discrepancies in systems. Additionally, Nikita participates in Capture The Flag (CTF) competitions along with Slovak National Cyber Team ranking top 90 within ctftime - Top CTF platform. When he finds more free time, he deepens his knowledge in Red Teaming TTPs and enjoys rock climbing.







