Bip39 Seed Phrase. You would then do a essential recovery having a command like the a single beneath. (This command makes use of a sample wallet file bunlded with BTCRecover) Anyone else who discovers the phrase can steal the bitcoins. It need to be held top secret, one example is https://social40.com/story4379581/bip39-https-linktr-ee-bip39-the-basic-principles-of-bip39-mnemonic