As more Bitcoiners adopt passphrases (the "25th word") for plausible deniability and multisig setups, the risk of human input error increases significantly.
Passphrases offer incredible security, but...
Why is it potentially dangerous?
Your 12 or 24 seed words have a built-in checksum (the final word validates the list).
Passphrases have zero checksum. Any arbitrary string—even a stray space, capitalization error, or typo—is mathematically valid.
Your 12 or 24 seed words have a built-in checksum (the final word validates the list).
Passphrases have zero checksum. Any arbitrary string—even a stray space, capitalization error, or typo—is mathematically valid.
1