Question

Mike installs a firewall in front of a previously open network to prevent the systems behind the firewall from being targeted by external systems. What did Mike do?

A. Reduced the organization's attack surface
B. Implemented defense in depth
C. Added a corrective control
D. Added an administrative control

Answer 1

Mike reduced the organization's attack surface by installing a firewall.

Step-by-step explanation:

Mike reduced the organization's attack surface by installing a firewall in front of the previously open network. An attack surface refers to the potential avenues through which a malicious actor can gain unauthorized access to a system or network. By implementing a firewall, Mike is preventing external systems from directly targeting the systems behind the firewall, thereby reducing the attack surface.