Bip39 Documentation As blockchain is decentralized, irreversible and nameless, it’s nearly impossible to freeze accounts or rollback transactions. You should make sure to allow recovery from mnemonic phrases which have invalid checksums (or that you don't have the wordlist) Be sure to consult with the program license for more detail. https://freebookmarkpost.com/story18618222/bip39-solana-a-review-of-seed-phrase-generator