The following message is displayed when you attempt to log in with an incorrect username or an incorrect password: Login incorrect This message does not indicate whether your username, your password, or both are invalid. Why does it not tell you this information?

What will be an ideal response?


If the system were to say that a password that someone entered was incor-
rect, it would be saying that the username was valid. This information could
be used by a cracker to help break into the system. Saying that a password
is valid for an invalid username does not make sense, but saying that a pass-
word is valid on the system could help a cracker in the same manner.

Computer Science & Information Technology

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