Bip39 Mnemonic Code Converter Tool. Because of the cryptographic design of BIP-39, a weak passphrase isn't going to lessen the protection of one other wallets or support expose the seed words. Anyone else who discovers the phrase can steal the bitcoins. It needs to be held top secret, one example https://socialeweb.com/story4309379/bip39-mnemonic-https-linktr-ee-bip39-5-essential-elements-for-bip-39