Bip39. You'd then do a simple recovery by using a command much like the just one down below. (This command uses a sample wallet file bunlded with BTCRecover) words, or enter your personal down below. Mnemonics with a lot less than twelve words have reduced entropy and could be guessed https://bookmarkshut.com/story19765467/bip39-word-list-https-linktr-ee-bip39-helping-the-others-realize-the-advantages-of-bip39