01What happened

The story, straight

AMD has quietly removed Transparent Secure Memory Encryption (TSME) from its consumer Ryzen processor lineup, a security feature that encrypts data stored in memory to protect against physical attacks. The change, confirmed by researcher Ben Kilpatrick after a months-long investigation tracked on GitHub, means non-Pro Ryzen users may be vulnerable to exploits that siphon data from connected memory chips. When pressed about the disappearance, an AMD engineer abruptly ended communications, stating, "My apologies, but I don't have any more information to share on this topic." AMD has neither officially acknowledged nor explained the removal.

AMD stripped a security feature called TSME — Transparent Secure Memory Encryption — from its consumer Ryzen chips and didn't tell anyone. Researcher Ben Kilpatrick tracked the change for months on GitHub after discovering the feature just vanished from newer AGESA firmware. TSME encrypts data in memory so attackers can't physically pull it off the chip; without it, consumer Ryzen users are exposed to a class of exploits they probably don't know exist. When Kilpatrick finally got an AMD engineer on the line, the engineer cut the conversation short with a "no more information to share" and AMD has gone silent since.

02Spread timeline

Where it actually started

Months ago (exact date unclear)Origin
Researchers begin tracking the disappearance of TSME from newer AGESA firmware versions.GitHub investigation kicks off when someone notices TSME is gone from newer firmware.
source
Recent weeks
AMD engineer abruptly ends inquiry with researcher Ben Kilpatrick, offering no explanation.AMD engineer cuts off the conversation — "no more information to share."
source
Jun 18, 2026
Tom's Hardware report surfaces on Hacker News and Lemmy, drawing broader attention.Story hits HN and Lemmy — now people are actually paying attention.
source

03Source receipts

Every claim, linked

Tom's HardwareOriginal report detailing the months-long investigation into TSME's disappearance from consumer Ryzen CPUs, including quotes from the AMD engineer conversation.
primaryhackernewssignal
LemmyCross-posted discussion on mander.xyz's technology community linking to the Tom's Hardware report.
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04What's solid, what isn't

What's solid and what isn't

Confirmed
  • TSME (Transparent Secure Memory Encryption) is no longer available on consumer Ryzen CPUs after newer AGESA firmware updates.
  • The feature remains available on AMD's Pro lineup.
  • An AMD engineer confirmed limited information and cut off communication with the researcher.
Disputed
  • The exact firmware version or timeline when TSME was removed from consumer chips.
  • Whether the removal was intentional or an unintended firmware regression.
  • The specific physical attack vectors now exposed to consumer Ryzen users.
Developing
  • AMD has not issued any official statement acknowledging or explaining the change.
  • No indication yet whether AMD will restore TSME to consumer Ryzen processors.

05Why it matters

The editorial take

Memory encryption is a baseline security expectation for modern processors, and AMD removing it from consumer chips without announcement or documentation undermines user trust in the platform. The lack of transparency is the real story — AMD has offered no explanation, no migration path, and no acknowledgment that the feature is gone. For anyone running a non-Pro Ryzen system, this is a silent downgrade they likely don't know about.

This is the kind of quiet downgrade that should make any Ryzen owner nervous. AMD didn't deprecate TSME with a blog post or a firmware note — it just disappeared. The engineer stonewalling makes it worse. If your security feature vanishes and the company won't say why, that's a trust problem, not a PR problem.