According to the Risk Management Framework (RMF), which role has a primary responsibility to report the security status of the information system to the authorizing official (AO) and other…

The Information System Security Officer (ISSO) plays a key role in the RMF, overseeing the day-to-day security posture of an information system. This includes regularly reporting the security status, control effectiveness, and any significant changes to the Authorizing Official (AO) and other stakeholders to ensure ongoing authorization.

A common control provider is responsible for developing, implementing, assessing, and monitoring common controls, not primarily reporting a system's overall security status to the AO.

An independent assessor evaluates the security controls but is not typically responsible for ongoing reporting of the system's security status to the AO.

A Senior Information Assurance Officer (SIAO) typically has broader organizational oversight and policy responsibilities, but the ISSO is specific to the system's ongoing security status reporting.