Trezor found spy chips inside its hardware wallets — three devices sold through a third-party reseller contained hidden boards that could capture recovery phrases shown on the screen and send them…

Trezor found spy chips inside its hardware wallets — three devices sold through a third-party reseller contained hidden boards that could capture recovery phrases shown on the screen and send them to attackers over a cellular network.

No thefts have been reported so far. Trezor has cut its network of resellers by about 80% and released a firmware update that blocks these implants. Buyers from the reseller since March 2026 can get a free replacement or refund.