user135294: When I tried login using a random mnemonic phrase the wallet shows incorrect word? How does the wallet know that it is not previously generated?

user121614: Seed phrases usually include a checksum. For example, a 12-word BIP39 seed phrase has 4 checksum bits, which means only about 1 in 16 randomly typed seed phrases will be considered valid.

135294: <p>When I tried login using a random mnemonic phrase the wallet shows incorrect word? How does the wallet know that it is not previously generated?</p>
 121614: <p>Seed phrases usually include a <a href="https://en.wikipedia.org/wiki/Checksum" rel="nofollow noreferrer">checksum</a>. For example, a 12-word <a href="https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki" rel="nofollow noreferrer">BIP39</a> seed phrase has 4 checksum bits, which means only about 1 in 16 randomly typed seed phrases will be considered valid.</p>
