Bip39 Ian Coleman. Due to the cryptographic structure of BIP-39, a weak passphrase does not reduce the protection of another wallets or help expose the seed words. What constitutes a "great wallet" is one that has obvious, easy to obtain documentation on supported BIP criteria, derivation paths, and recovery processes. https://1001bookmarks.com/story19507705/bip39-word-list-pdf-https-linktr-ee-bip39-5-easy-facts-about-bip39-generator-described