BSides Prague 2025: A Recap and Photos
Explore the highlights of BSides Prague 2025, where cybersec experts gathered for talks and hands-on activities.
BSides Prague 2025, held on April 3-4 with the theme 'Hack the Castle,' brought together 300+ security professionals for two packed days of learning and networking. We had a blast being there as a gold sponsor!
This year, the event went all-in with a fun, two-day CTF, lively hallway convos, and a memorable after-party at a nearby pub. A big highlight? The 'speaker wall' that let attendees show appreciation for their favorite talks - what a way to build community.
A huge thank you to the organizers and volunteers who made it all happen. We can't wait for next year!
Catch up on the talks: BSides Prague YouTube Channel
Relive the event: Browse the photo gallery
About ELLIO - ELLIO is a research lab specializing in analyzing reconnaissance activities and mass-scale attacks on the internet. Learn more at ellio.tech
Written by
Jana Tom is the co-founder, COO, and Head of Partnerships at ELLIO, a research lab turning mass exploitation and network reconnaissance data into actionable threat intelligence and real-world defense techniques. As an active non-technical member of the cybersecurity community, she excels at bridging the gap between technical experts, business professionals, and decision-makers, translating complex security challenges into clear, strategic opportunities.
With a background in political science and international relations, Jana brings a unique perspective to cybersecurity, driving ELLIO's growth through strategic partnerships and operational excellence. Before co-founding ELLIO, she spent over a decade at Avast (now part of Gen Digital), where she shaped corporate events strategy and built deep connections within the global tech community. She produced hundreds of events across cybersecurity, online privacy, and artificial intelligence, and created and hosted CyberSec&AI Connected, an international hybrid series that brought together leading voices on AI in cybersecurity.
Jana is passionate about fostering collaboration in the security industry and making threat intelligence accessible to organizations of all sizes.
Vlad is the co-founder of ELLIO, a research lab turning mass exploitation and network reconnaissance data into actionable threat intelligence and real-world defense techniques. A lifelong cybersecurity enthusiast, he's especially passionate about network security, IoT, and cyber deception.
Before starting ELLIO, Vlad founded and led the Avast IoT Lab (now part of Gen Digital), where he worked on security tools and explored new IoT threats.
He has spoken at many community events like BSides and HackTheBay, as well as large conferences like Web Summit and SXSW where he showed how smart homes and connected devices can be vulnerable, even to non-cybersec audiences.