An 18-word mnemonic phrase raises protection by adding additional words to your sequence. Below’s an example: This text explains BIP39, the standard that defines how seed phrases are created, and summarizes how BIP32 and BIP44 standards allow wallets to supercharge seed phrases to support a lot of much more keys. https://thebookmarklist.com/story18897868/a-secret-weapon-for-bip39-words-to-numbers