this post was submitted on 28 May 2026
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[–] partial_accumen@lemmy.world 4 points 57 minutes ago* (last edited 55 minutes ago)

The actual paper (PDF) this is based on gives much better information than the article. From that we get some really key information:

To allow FROST to measure SSD contention, the victim must perform activities that result in storage accesses to the same disk as the file used for contention measurement

This can't ready your SSD. It can only listen in on the conversation between your CPU and SSD when something else reads it or writes to it. The whole FROST approach has a number of clever tricks to generate reads from open applications though. Further, it requires the attacker's code to be running in an active browser session.

Also, If you have two SSDs, and your browser is on one, this FROST approach can't see anything written to or read from on the other SSD.

Lastly, there's a mention in the paper about hardware based SSD encryption being vulnerable, there's no mention of Software Whole Disk Encryption. Given how the researchers are using the SSD timing exploit, I would guess that a software (not hardware) whole disk encryption might be immune to this attack because the patterns of timings would be different with encrypted data being written to the SSD (instead of the data being encrypted by the SSD when written.