SlowMist researcher Cos said in a post on X that users affected by the COLDCARD hardware wallet weak-randomness security incident could avoid the current attack if their seed phrase was set up with a Passphrase. He added that a Passphrase is not the wallet’s unlock PIN, but a separate password specifically attached to the seed phrase. According to his post, mainstream hardware wallets support this mechanism. The comment focused on how the additional protection changes the risk profile in the ongoing COLDCARD incident, without describing it as a PIN-based safeguard. The update was shared by ChainCatcher as a 7x24 news brief.
SlowMist’s Cos said in a post on X that, in the COLDCARD hardware wallet weak-randomness security incident, users can avoid the current attack if their seed phrase was created with a Passphrase.
He said a Passphrase is not the wallet unlock PIN. It is a password set specifically for the seed phrase, and mainstream hardware wallets support this feature.
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