AMD has disabled a security feature that encrypts a CPU's memory for consumer chipsets

The Transparent Secure Memory Encryption (TSME) feature will only be available for the Pro versions of AMD CPUs going forward

The feature was designed to protect a CPU's memory in the case of cold boot attacks

https://arstechnica.com/security/2026/06/users-cry-foul-after-amd-stripped-memory-crypto-from-its-consumer-cpus/

Users cry foul after AMD stripped memory crypto from its consumer CPUs

AMD's stripping of TSME from consumer CPUs appears to be a deliberate, covert move.

Ars Technica

@campuscodi so one needs to revert to older Microcode if not refuse to update said #Microcode!

  • Funfackingtastic…

I hope users sue #AMD for that, and I don't mean #ClassAction but force them to undo the downgrade!

@Netzblockierer @campuscodi You probably don't want too new AGESA if you're running ECC memory either – 1.2.7.0 caps ECC speed to 5200 MT on Ryzen 9xxx (but not 7xxx).

@jernej__s @campuscodi wtf?

Also not making #ECC the norm is one of the worst things ever done in computing!