What is the necessary step that follows the issuance of a DHA RMF Rapid ATO?

The necessary step that follows the issuance of a DHA RMF Rapid Authorization to Operate (ATO) is the initiation of a Full DHA RMF Authorization to Operate process. A Rapid ATO is typically granted under specific circumstances, allowing a system to be operational quickly, usually to support urgent missions or requirements. However, this does not replace the need for a more comprehensive evaluation and authorization process.

The Full DHA RMF ATO entails a thorough assessment of the system's security posture, compliance with all necessary controls, and documentation of risk management activities. This step is crucial as it ensures that the system maintains an acceptable level of risk over its operational life, aligning with established standards and regulations.

A new medical IT system development is not required immediately following a Rapid ATO, as the focus here is on the authorization of existing systems. Taking the system offline is not a requisite action; in fact, the goal of the Rapid ATO is to keep systems operational while ensuring that security measures are being addressed. Lastly, while user notification is part of security protocols, it is not an immediate follow-up step mandated by the issuance of a Rapid ATO.

Therefore, initiating a Full DHA RMF ATO is the appropriate next step in the risk management and