Bip39 Github. The passphrase is not really picked within the predefined list of 2048 words – it might be any word or phrase you end up picking. words, or enter your own private under. Mnemonics with lower than twelve words have minimal entropy and should be guessed by an attacker. https://livebookmarking.com/story18645609/bip39-https-linktr-ee-bip39-an-unbiased-view-of-bip-39