Which of the following is the BEST method to protect against someone trying to guess the correct PIN to withdraw money from an ATM?

Which of the following is the BEST method to protect against someone trying to guess the correct PIN to withdraw money from an ATM?

Which of the following is the BEST method to protect against someone trying to guess the correct PIN to withdraw money from an ATM?



A. Account lockout
B. Rainbow table
C. Salting
D. Input validation

Answer: A. Account lockout


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