Bip39 Checksum. Thanks to the cryptographic design and style of BIP-39, a weak passphrase does not lessen the safety of one other wallets or assistance reveal the seed words. It's also discouraged to produce words straight from imagined and use a secure cryptographic function to take action. You can use https://e-bookmarks.com/story5143371/bip39-wallets-https-linktr-ee-bip39-top-guidelines-of-bip39-mnemonic