Bip39 Ian Coleman. Because of the cryptographic design of BIP-39, a weak passphrase won't lessen the security of the other wallets or aid expose the seed words. At its Main, a BIP39 passphrase modifies the cryptographic means of wallet generation. In this article’s a technical look at how it works: https://bookmarkshut.com/story19615677/bip39-https-linktr-ee-bip39-bip39-wallet-fundamentals-explained