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Benjamin Kollenda

39C3 (more languages)

About

Developer with a healthy enjoyment of the Ops side of things. Security background with embedded systems experience. Likes to tinker with things I shouldn't tinker with. Prefers the brute-force approach instead of the correct or easy way.

39c3@bluntforceops.com or DECT 50617

Sessions by Benjamin Kollenda (1 session)

The Angry Path to Zen: AMD Zen Microcode Tools and Insights

EntrySign opened the door to custom microcode on AMD Zen CPUs earlier this year. Using a weakness in the signature verification we can load custom ...

December 29, 2025 at 08:10 PM
Fuse
40 minutes