When a password's hash doesn't match the stored hash, the typical response is to receive a message stating that the username or password is invalid. This is a standard security practice to prevent unauthorized access. Therefore, the correct answer is option A.
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When a typed password's hash doesn't match the stored hash, the user typically receives a message indicating an invalid username or password. This message is part of standard security protocols to prevent unauthorized access. The other options listed are not standard practices. ;