Electrum Bip39 Passphrase As blockchain is decentralized, irreversible and nameless, it’s almost impossible to freeze accounts or rollback transactions. Any one else who discovers the phrase can steal the bitcoins. It must be saved key, for instance it will have to not be typed into any website. Mnemonic phrases are https://web.archive.org/web/20241123074420/https://bip39-phrase.com/