Bip39 Passphrase. Entropy values has to be sourced from a powerful supply of randomness. What this means is flipping a fair coin, rolling a fair dice, sound measurements and so on. Do NOT use phrases from books, lyrics from songs, your birthday or steet deal with, keyboard mashing, or something https://seodirectory4u.com/listings13149146/bip39-online-https-linktr-ee-bip39-the-single-best-strategy-to-use-for-bip39-standard