Bip39 Last Word Checksum This extra complexity increases the chance of misplacing the passphrase, and therefore dropping your copyright. Shop it in a very secure place: Your seed phrase is basically the key for your cash, so it is vital that you shop it within a protected spot. Look at https://bookmarkstumble.com/story20382545/enter-your-bip39-mnemonic-not-known-facts-about-bip39-phrase