When backing up your mnemonic phrase, we strongly suggest employing physical media, like composing over the mnemonic phrase card or possibly a metallic board like the SafePal Cypher. You may as well hold a number of back-ups of it. Art is a copyright-stability professional and researcher with serial entrepreneurship history. https://tornadosocial.com/story4363165/a-review-of-bip39-passphrase