Which outcome corresponds to developing a plan of action and milestones detailing remediation plans for unacceptable risks identified in security and privacy assessment reports?

• A. Remediation actions to address deficiencies in the controls implemented in the system and environment of operation are taken.
• B. Security and privacy plans updated to reflect control changes.
• C. A plan of action and milestones detailing remediation plans for unacceptable risks identified in security and privacy assessment reports is developed.
• D. Ongoing assessments of control effectiveness are conducted.

Answer: (C)

The main idea here is documenting how identified unacceptable risks will be addressed with concrete steps, timelines, and responsibilities. This is done through a plan of action and milestones (POAM). When a security or privacy assessment flags risks that are not acceptable, the next formal deliverable is a POAM that lays out the remediation actions, assigns owners, sets milestones, and tracks progress toward eliminating or reducing risk. That planning artifact specifically captures the what, who, and when of remediation, making it the best fit for the outcome described.

The other options refer to actions or artifacts that follow from the POAM or serve related purposes—pure remediation actions, updates to security/privacy plans to reflect changes, or ongoing assessments—rather than the dedicated planning document that organizes and schedules remediation work.