AMD removes memory encryption security feature from consumer Ryzen CPUs via firmware update without notice; engineers refuse to explain, leaving users vulnerable to physical attacks

AMD silently removes memory encryption from consumer Ryzen CPUs, leaving users unaware that they may be vulnerable — security feature vanishes after newer AGESA firmware, AMD engineers go radio silent when pressed about the change

(Image credit: AMD) According to a report by Ars Technica, AMD has quietly stripped a critical security feature from its lower-end CPUs, leaving unaware users potentially vulnerable to physical attacks. Following a months-long investigation tracked on GitHub, Ben Kilpatrick confirmed that the Transparent Secure Memory Encryption (TSME) feature — which protects CPUs against physical exploits that siphon data from connected memory chips — was suddenly no longer available on AMD CPUs outside the co...