Talks to Watch

DEF CON 26 - Christopher Domas - The Ring 0 Facade Awakening the Processors Inner Demons

24K views · Oct 22, 2018 · 21:28 · 2 HN recommenders · 3 mentions · discussed 2019–2026

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.

Why Hacker News points people here: HN commenters call his x86 internals talks spectacular and mention them whenever low-level processor surprises come up.

“I remember watching his Defcon talks on x86 shenanigans[^1][^2] and being amazed at what he's been able to discover”HN comment, 2026

What Hacker News said 3

Strongly recommendsdaniel-thompsonAug 2021

“And yes, they are spectacular.”

Spectacular talks on x86 processor internals.

Full comment

These links don't work for me, but the videos are on YT: - link - this video And yes, they are spectacular.

in “Compiling C Programs Into “Mov” Instructions (And Only “Mov” Instructions)” · view on HN
Strongly recommendsaecsocketAug 2026

“I remember watching his Defcon talks on x86 shenanigans[^1][^2] and being amazed at what he's been able to discover”

Amazing x86 discoveries by Christopher Domas.

Full comment

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

Cites itkbensonJun 2019

“two Defcon talks I watched in the last day or two”

Related talk on vulnerabilities via additional onboard processors.

Full comment

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

in “Everybody Be Cool, This Is a Robbery” · view on HN