Matt on Nostr: Honestly it's an impressive attack. My position on hardware devices in general has ...

Honestly it's an impressive attack. My position on hardware devices in general has radically shifted to "fuckem" territory.

Something like SeedSigner is as close as I'll get to one anymore and it's not really the same thing depending on how you build it. I figure it's closer to general computing options if you don't order an entire kit or everything from a Bitcoin specific vendor. I ordered my parts from several vendors.

I'd like to see the software run on more hardware.

quoting
nevent1q…wwte

Where the foam padding behind a Ledger Nano X screen should be: a microcontroller with its markings scraped off, a Nordic cellular modem, an eSIM and a custom antenna.

It's wired into the lines that carry data to the screen. When setup shows your 24 words, it reads them and sends them to the attacker over its own mobile connection.

It never goes near the secure chip, so the device passes the genuine check. Ledger's own docs say the check can't detect this.

https://ungovernable.network/shows/bitcoin-brief/93m-drained-from-tampered-ledger-devices/