this post was submitted on 18 Jun 2026
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62
AMD silently removes memory encryption from consumer Ryzen CPUs, leaving users unaware that they may be vulnerable (www.tomshardware.com)
submitted 2 hours ago by RobotToaster@mander.xyz to c/technology@lemmy.world
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[–] BananaTrifleViolin@piefed.world 22 points 1 hour ago

The headline is a little misleading: the feature has disappeared from consumer chips but AMD is not responding when asked why. As the article itself says: it's not clear if this is a deliberate decision, or a bug that has caused this issue.

The headline implies it was a deliberate action. Maybe it was, but at the moment we don't really know. But it is good that Toms Hardware is writing about this and drawing attention to this issue. It's concerning regardless of the reason, and it's also concerning how cagey AMD is being about addressing this issue.

[–] Lojcs@piefed.social 1 points 27 minutes ago

Is this different than the ddr5's memory encryption?

[–] hoohoohoot@fedinsfw.app 10 points 2 hours ago (1 children)

They did WHAT???!!?

[–] aeronmelon@lemmy.world 2 points 1 hour ago

They did a Trump Administration “We’re good on OpSec.”

[–] unexposedhazard@discuss.tchncs.de 6 points 2 hours ago* (last edited 1 hour ago) (2 children)

The article isnt very clear on this, but did they actually remove a critical feature from already sold products? Surely they can be sued for that?

[–] frongt@lemmy.zip 15 points 1 hour ago* (last edited 1 hour ago) (1 children)

Tom's is trash and should be banned. The original Ars article it mentions is better: https://arstechnica.com/security/2026/06/users-cry-foul-after-amd-stripped-memory-crypto-from-its-consumer-cpus/

Sounds like it was never really supported, but available. With the new BIOS update it's no longer available.

[–] Mihies@programming.dev 2 points 56 minutes ago (1 children)

If that's the case, AMD shouldn't have problems saying so. Although it's still a very bad move from their part.

[–] frongt@lemmy.zip 1 points 7 minutes ago

I suspect lawyers are involved.

[–] MalReynolds@slrpnk.net 3 points 1 hour ago (1 children)

Eh, it protects against a certain class of attack when the attacker has physical access e.g. reading memory with memory probes while the computer is (still) on to get passwords etc., i.e. sophisticated attackers like customs, FBI. If they have physical access you're probably hosed anyway, but if you have the presence of mind to shut the machine off (not sleep, hard off if needed) memory encryption becomes irrelevant.

[–] frongt@lemmy.zip 5 points 1 hour ago (1 children)

That is not correct. Data can persist in RAM even when powered off, especially if the sticks are frozen. https://en.wikipedia.org/wiki/Cold_boot_attack

[–] MalReynolds@slrpnk.net 3 points 1 hour ago

Ah, thanks, I stand corrected. Still a good practice.