Which of the following will BEST protect an organization from internal security attacks?

A.
Static IP addressing

B.
Internal address translation

C.
Prospective employee background checks

D.
Employee awareness certification program

Explanation:
Because past performance is a strong predictor of future performance, background checks of prospective employees best prevents attacks from originating within an organization. Static IP addressing does little to prevent an internal attack.
Internal address translation using nonroutable addresses is useful against external attacks but not against internal attacks. Employees who certify that they have read security policies are desirable, but this does not guarantee that the employees behave honestly.