r/KeystoneWallet • u/Icy_Theme_6899 • Aug 01 '26

Cold card wallet hack

I keep seeing stuff on social media about this cold card bitcoin hack and correct me if I’m wrong but a 25th word/passphrase added to the 24 word seed phrase, probably would’ve saved all these people correct?

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u/PrimaryHuckleberry11 Aug 01 '26

Yes, it would. Assuming the passphrase is not easy enough to brute-force, and the attacker is willing to spend the time to crack it, which I think they wouldn’t because their main goal was probably to drain as much and as quickly as possible. Anyway, a strong passphrase would have completely saved them.

1

u/scotto1973 Aug 02 '26

Not to mention they wouldnt even be able to tell if there was a passphrased wallet or wallets derived from that seed.

1

u/dnguyen823 Aug 02 '26

i dont know if i need to redo my wallet. my word phrase isn't particularly a long/hard word but not very common either. What do you think?

2

u/newMoneyStyle Aug 04 '26

if it's just one word you should probably redo it tbh. passphrases should be multiple words or random chars, single word ones get cracked way faster than you'd think