Bip39 Mnemonic. You would then do a fundamental recovery which has a command such as a single down below. (This command works by using a sample wallet file bunlded with BTCRecover) Anybody else who discovers the phrase can steal the bitcoins. It have to be stored solution, for example it https://binksites.com/story8333975/ian-coleman-bip39-https-linktr-ee-bip39-not-known-factual-statements-about-ian-coleman-bip39