RomHack Camp 2026

jiraky

Dr. Zago holds a PhD from the University of Murcia, Spain. He is currently based in Verona, Italy, working as a cybersecurity engineer (official registration code VR-A-4783). Since 2024 he works for the Oniverse Group as Cyber Security engineer.

His research has focused on Artificial Intelligence for cybersecurity, including machine learning solutions for network intrusion detection systems, big data and sentiment analysis to identify social bots on social media platforms; and, anomaly detection in users' behavioural patterns for authentication and authorization purposes.


Session

10-02
11:00
40min
Stupid Sexy Bearer Tokens: a deep dive into exploding OIDC sessions and hardening with DPoP
jiraky, reymerk, Giuseppe, toctou, Stefano Maistri

Standard OIDC bearer tokens are deceptively simple and highly attractive to developers, but they hide a structurally weak security posture: anyone who holds them can spend them. Following up on our previous deep dive @MOCA24 into securing OIDC code exchanges, this presentation is a hands-on, exploit-driven exploration of token-usage security.
We will begin by demonstrating how easily standard bearer tokens are stolen and replayed remotely from an attacker's terminal. We will then look "beyond the basics" to live-demo a hardened implementation of RFC 9449 (DPoP) using a Keycloak identity provider and an Express.js resource server.

Cybersecurity and Hacking
STAGE 1 (Section 9)