Tony Chen from Microsoft gave a talk called "Guarding Against Physical Attacks: The Xbox One Story" and he explains that they want any sort of physical attack to cost at least the price of 10 games ($600 at the time).
This attack is on the early models that didn't have those protections enabled. The researcher surmised that later models do indeed have anti-glitching mechanisms enabled.
FYI, it's been almost two years since us-east-1-chi-2 launched and it's still missing on the site. Any reason for this? Kind of feels like local zones are a 2nd class citizen even at AWS itself.
Thank you for maintaining this, I do use it every few months at $DAYJOB and it's quite useful for my capacity/deployment planning.
Yes that revision is patched to specifically counter RGH. Microsoft disabled the ability to get the precise timing needed from the CPU and also added more filtering/robustness so the system will reset properly instead of getting into the inconsistent state of the old revisions.
https://www.youtube.com/watch?v=U7VwtOrwceo&t=715s