Bip39 Checksum. If you would like to refresh your memory about the basics of how copyright wallet seed phrases and passphrases function, look at reviewing the Vault12 report in regards to the BIP39 standard. For those who enter the “Incorrect” passphrase, your wallet will not likely give you an error. https://deepodirectory.com/listings13035510/bip39-https-linktr-ee-bip39-examine-this-report-on-bip39-list