The Ledger open-source research team has discovered and reported a vulnerability in Trezor’s Safe 3 and Safe 5 devices.

According to a post published on X on March 12, the Ledger open-source research team, known as Ledger Donjon, identified a flaw in the microcontrollers of Trezor’s Safe 3 and Safe 5 models. Despite Trezor’s recent security improvements, Ledger found that cryptographic operations can still be performed on the microcontroller, potentially exposing the devices to more “advanced attacks”.

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