Bip39 Passphrase Empty For None ) By way of example, take the word “accident” for instance. Its 1st 4 letters are “acci”. If you look at the BIP39 word list, you will note that no other word starts with “acci”. Anybody else who discovers the phrase can steal the bitcoins. https://thesocialvibes.com/story4097754/trust-wallet-seed-phrase-generator-free-rumored-buzz-on-bip39-phrase