Bip39 binary https://canvas.instructure.com/eportfolios/3396498/ricardooxtv236/bip39-generator-online-the-very-best-tools-for-secure-pocketbook-development A BIP39 seed phrase designed with ideal randomness can't be guessed by means of brute pressure, because there are actually just too lots of permutations. For words that have only 3 letters, there is absolutely no 4th letter. One ex... https://bip39marco.mystrikingly.com/