Bip32 and bip39 https://jsbin.com/titaniseko A BIP39 seed phrase established with acceptable randomness can not be guessed through brute force, since you'll find simply too several permutations. Push X to abort passphrase application and keep editing the passphrase. Picking CANCEL soon after an abort will prevent the method. One example is https://thebookpage.com/story5526030/bip39-address-the-fact-about-bip39-word-list-github-that-no-one-is-suggesting-https-cutt-ly-uryc5rw7