Certified Information Systems Security Professional (CISSP) — Question 344

What is the MOST effective response to a hacker who has already gained access to a network and will attempt to pivot to other resources?

Answer options

• A. Warn users of a breach.
• B. Reset all passwords.
• C. Segment the network.
• D. Shut down the network.

Correct answer: C

Explanation

Segmenting the network is the most effective response as it limits the hacker's ability to move laterally within the network. Simply warning users or resetting passwords does not prevent further access, and shutting down the network could disrupt essential services without addressing the breach.