How malicious hardware wallet firmware can leak your Bitcoin seed phrase

Dark Skippy, a recently discovered attack vector, poses a significant threat to the security of Bitcoin hardware wallets. The method allows a compromised signer to exfiltrate its master secret seed by embedding portions into transaction signatures, requiring only two transactions to complete. Unlike previous assumptions that multiple transactions were necessary, this streamlined approach means... source: https://cryptoslate.com/how-malicious-hardware-wallet-firmware-can-leak-your-bitcoin-seed-phrase/