AMD will reinstate TSME memory encryption on Ryzen 9000 desktop CPUs

Category: Security
Status: confirmed
Sources: Tom's Hardware, TechPowerUp, discussion
Summary: AMD said it will restore Transparent Secure Memory Encryption (TSME) on non-PRO Ryzen 9000 desktop processors through a BIOS update in July 2026, reversing the silent removal that shipped in AGESA 1.2.7.0 and was reported around 2026-06-16. AMD attributed the reversal to "valuable community feedback." TSME encrypts all system memory at the firmware level, defending against cold-boot and physical DRAM extraction attacks; after the firmware change it had remained enabled only on PRO and EPYC parts.
Why it matters: It restores a baseline physical-memory protection on mainstream desktop parts that users had lost without notice, though the gap persists until the July BIOS ships.
Follow-up: Watch for the July AGESA and BIOS update actually delivering TSME, which Ryzen 9000 SKUs and boards are covered, and whether older consumer generations get the same restoration.