Which of the following techniques can be used to prevent the disclosure of system information resulting from arbitrary inputs when implemented properly?
A program displays:
ERROR: this program has caught an exception and will now terminate.
Which of the following is MOST likely accomplished by the program's behavior?
After Matt, a user, enters his username and password at the login screen of a web enabled portal, the following appears on his screen:
`Please only use letters and numbers on these fields'
Which of the following is this an example of?