Bip39 Online. Due to the cryptographic structure of BIP-39, a weak passphrase does not reduce the security of the other wallets or help reveal the seed words. Sure, BIP39 passphrases are situation-sensitive. Be sure to enter your passphrase just when you set it up, like any uppercase or lowercase letters. https://exactlybookmarks.com/story18810457/bip39-mnemonic-https-linktr-ee-bip39-not-known-facts-about-bip39