When implementing security measures, which type of compliance is primarily used for Federal Information Systems?

FISMA, the Federal Information Security Management Act, is the correct choice because it establishes a comprehensive framework for ensuring the effectiveness of information security controls over information resources. Specifically, it applies to federal agencies and contractors, requiring them to secure their information systems and protect sensitive data. FISMA mandates that agencies develop, document, and implement an information security program that includes policies and procedures addressing security measures, ultimately leading to the enhancement of the security posture of federal information systems.

While ISO 27001, NIST SP 800-53, and HIPAA also address aspects of security and compliance, they serve different purposes or audiences. ISO 27001 is an international standard that provides a framework for information security management systems, applicable globally rather than being limited to federal systems. NIST SP 800-53 provides a catalog of security and privacy controls for federal information systems, but it's part of the broader implementation under FISMA. HIPAA focuses specifically on the protection of healthcare information rather than encompassing the broader requirements for all types of federal information systems.