An 18-word mnemonic phrase raises security by introducing more words on the sequence. Right here’s an instance: A simple backup process for bitcoin in the wallet could consist in transcribing the private important into an encrypted file. The non-public important is a random string of figures, just like this 1: https://growthbookmarks.com/story18760852/the-fact-about-bip39-seed-phrase-word-list-that-no-one-is-suggesting