Bip39 Npm. Thanks to the cryptographic structure of BIP-39, a weak passphrase won't reduce the safety of the opposite wallets or help reveal the seed words. Certainly, BIP39 passphrases are circumstance-delicate. Make sure you enter your passphrase particularly when you set it up, which includes any uppercase or lowercase letters. https://indexedbookmarks.com/story18580379/bip39-mnemonic-https-linktr-ee-bip39-about-ian-coleman-bip39