Bip39 seed phrases http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf This really is why you must produce a backup of the seed phrase making use of metal copyright wallet like Coinplate, that are 100% chrome steel and BIP39 compatible. Simply how much stability does a passphrase insert? A BIP39 passphrase substantially boosts your Bitcoin wallet’s protection. https://www.bitsdujour.com/profiles/wWbptt