Which of the following MOST likely explains the nature of the incident that caused the organization to implement this remediation?

An organization implemented a secure boot on its most critical application servers which produce content and capability for other consuming servers A recent incident, however led the organization to implement a centralized attestation service for these critical servers .

Which of the following MOST likely explains the nature of the incident that caused the organization to implement this remediation?
A . An attacker masqueraded as an internal DNS server
B . An attacker leveraged a heap overflow vulnerability in the OS
C . An attacker was able to overwrite an OS integrity measurement register
D . An attacker circumvented IEEE 802.1X network-level authentication requirements.

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Answer: C