Bip39 Github. You would probably then do a primary recovery having a command such as the a single below. (This command uses a sample wallet file bunlded with BTCRecover) In the event you ended up to reveal your seed phrase under duress, your concealed wallets would stay secure and unknown. https://indexedbookmarks.com/story18604482/bip39-wallet-https-linktr-ee-bip39-getting-my-bip39-passphrase-to-work