Bip39 buffer is not defined https://josueaqpi312.huicopper.com/leading-5-online-bip39-generators-for-easy-copyright-security You then decide to empower BIP-39 passphrase guidance as part of your hardware wallet and stamp the passphrase(s) on the hexagonal chrome steel rod and shop the rod in a separate geographical locale in your 24-word seed backup so as to: BIP39 solves this https://getsocialsource.com/story5288119/bip39-brute-a-simple-key-for-bip39-github-unveiled-https-x-com-tundra838554