Bip39 Ian Coleman. Because of the cryptographic style of BIP-39, a weak passphrase does not reduce the protection of one other wallets or assist expose the seed words. words, or enter your personal under. Mnemonics with less than twelve words have reduced entropy and will be guessed by an attacker. https://guideyoursocial.com/story4202144/bip39-passphrase-https-linktr-ee-bip39-about-ian-coleman-bip39