Bip39. Then in a very theft or threatening situation, you can give your attackers the Restoration seed phrase (with no passphrase) and they may recover the wallet without having being aware of you've another wallet using a passphrase The entropy we produce have to be a numerous of 32 bits, https://directoryorg.com/listings13121072/bip39-word-list-https-linktr-ee-bip39-bip39-github-no-further-a-mystery