A security analyst needs to prioritize vulnerabilities for patching. Given the following vulnerability and system information:

Which of the following systems should the analyst patch first?
Correct Answer: C
To determine which system should be patched, prioritize based on:
1. Sensitive Data: Systems containing sensitive data are more critical to protect.
2. Internet-Facing: Internet-facing systems are at greater risk of external attacks.
3. Vulnerability Score: Systems with higher scores should be patched sooner, especially if they affect Confidentiality (C), Integrity (I), or Availability (A) significantly.
System 1: Not handling sensitive data but is internet-facing. Vulnerability score impacts Confidentiality (C:H), Integrity (I:L), and Availability (A:H).
System 2: Not sensitive or internet-facing, with a similar vulnerability score but lower external risk.
System 3: Handles sensitive data, is internet-facing, and the score affects Confidentiality (C:H), with lower Integrity (I:N) and Availability (A:L).
System 4: Not sensitive but internet-facing, with a score impacting all three (C:C, I:L, A:H).
System 5: Handles sensitive data, is internet-facing, but the vulnerability has a limited impact on Confidentiality (C:L) and Availability (A:N).
System 6: Not sensitive, not internet-facing, and has a similar vulnerability score to other low- priority systems.
System 3 should be patched first because it handles sensitive data, is internet-facing, and has a vulnerability that significantly impacts Confidentiality (C:H). This combination represents the highest risk.