Bip39 spec https://www.anime-planet.com/users/zoriuswxxq A BIP39 seed phrase developed with correct randomness cannot be guessed by means of brute drive, for the reason that you will find simply too many permutations. For words that only have 3 letters, there's no 4th letter. By way of example With all the word “incorporate”, https://agency-social.com/story5664377/bip39-vs-slip39-reddit-bip39-ian-coleman-for-dummies-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw