Trezor, the leading hardware wallet provider, has patched a security issue in their Safe 3 and Safe 5 wallets after researchers from Ledger Donjon, the security team of rival company Ledger, found a bug.

The issue was in the microcontrollers and potentially allowed attacks to compromise security. But Trezor says users’ funds are safe and no action is required.

The security flaw was discovered by Ledger Donjon, an open-source research team focused on hardware wallet security.

According to their findings, Trezor had implemented Secure Elements (SE) to protect user’s PIN codes and cryptographic secrets, but cryptographic operations could still be performed on the…

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