Bip39 Ian Coleman. You should then do a fundamental recovery with a command like the a person beneath. (This command works by using a sample wallet file bunlded with BTCRecover) Any person else who discovers the phrase can steal the bitcoins. It should be saved secret, one example is it https://getsocialsource.com/story4484191/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-fundamentals-explained