B2DB — Who said what, where, and when

Martijn Grooten

Principal Security Researcher, Censys

Martijn Grooten is listed as Principal Security Researcher, Censys. Martijn spoke at Barcelona Cybersecurity Congress 2026 in November 2026 (speaker, “Are you okay, Internet? The state of the internet in 2026”). Martijn is scheduled to speak at Black Hat Europe 2026 on 9 December 2026. Speaks mainly at Technology, Software & Media events.

Compiled from published conference agendas; not yet confirmed by Martijn. Is this you? Claim this profile.

About

A former academic mathematician, Martijn has nearly two decades of experience in cybersecurity. He previously ran the Virus Bulletin Conference, a leading threat intelligence event, led investigations into a wide range of threat actors, and worked on cybersecurity initiatives for at-risk groups and individuals. At Censys ARC, he focuses on tracking threat actor infrastructure broadly, with a particular emphasis on APT groups

Upcoming

Black Hat Europe 2026 7 December 2026 – 10 December 2026

Sessions at 1 conference

Barcelona Cybersecurity Congress 2026 3 November 2026 – 5 November 2026

Others from Censys

See all 2 speakers from Censys