2 HN users recommended this talk2 months2019–2026score 3
Years with an HN recommendation, 2007–2026
HN commenters call his x86 internals talks spectacular and mention them whenever low-level processor surprises come up.
Christopher Domas's DEF CON 26 talk on secret processor registers that vendors reserve for third parties holding trusted keys. He examines how users are locked out of parts of their own CPUs.
“I remember watching his Defcon talks on x86 shenanigans[^1][^2] and being amazed at what he's been able to discover” (HN, 2026)
Holy shit, Christopher Domas is back. I remember watching his Defcon talks on x86 shenanigans[^1][^2] and being amazed at what he's been able to discover. Then he got whisked away by Intel and now drops this. I'm excited. [^1]: [this video] [^2]: [link]
While somewhat interesting, I'm not sure there's much to discuss unless the presentation or details are already available. Interestingly, this reminds me of two Defcon talks I watched in the last day or two, which also cover vulnerability through additional processors onboard.[1][2] 1: [link] 2: [this video]
Related talk on vulnerabilities via additional onboard processors.
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