CISM: Certified Information Security Manager

Question

An organization has identified a heightened risk of external brute-force attacks in its environment. Which option is the MOST effective method to mitigate this risk to the organization’s critical systems?

Explanation

Multi-factor authentication requires a second, independent authentication factor in addition to a password. It therefore prevents an attacker from gaining access with a successfully guessed or cracked password alone, directly mitigating the primary risk of external brute-force credential attacks.

CISM: Certified Information Security Manager

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