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NIST SP 800-53 Rev 5

NIST Special Publication 800-53 Revision 5 is published by the National Institute of Standards and Technology and serves as the definitive security and privacy control catalog for US federal information systems. It is the broadest and most comprehensive framework supported by Ayliea, covering 197 questions across 20 control families. While 800-53 is mandatory for federal agencies under FISMA and FedRAMP, it has become a de facto reference framework across industries that require rigorous control documentation — including defense contractors, financial institutions, healthcare systems, and cloud service providers pursuing federal contracts. Its depth makes it the right choice for organizations that need to demonstrate exhaustive control coverage rather than just a baseline. Revision 5 is the current release. Key changes from Rev 4 include tighter privacy control integration, the addition of supply chain risk management as a dedicated control family, and updates to reflect cloud, IoT, and mobile threat landscapes.

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What Ayliea Assesses

The assessment covers all 20 NIST 800-53 control families, evaluating both the existence of controls and the operational evidence that supports them.
Policies and technical controls governing who can access systems, under what conditions, and how identities are verified. Includes account lifecycle management, least privilege enforcement, multi-factor authentication, and session management.
Security awareness and role-based training programs, as well as audit logging — what events are captured, how logs are protected, how long they are retained, and whether they are reviewed.
Configuration baseline management and change control processes, business continuity and disaster recovery planning and testing, and your risk assessment methodology including system categorization and risk acceptance processes.
Incident response plan maturity, team structure, communication procedures, and post-incident review practices, alongside controlled maintenance of information systems and maintenance personnel access controls.
Media handling and sanitization controls, physical and environmental protection of facilities and systems, and personnel security covering background screening, access agreements, and termination procedures.
Security planning documentation, enterprise-wide program management, system security plans, and privacy risk assessments. Evaluates governance structures and executive accountability for security.
Network architecture controls — boundary protection, encryption in transit, network segmentation, and protection of communications at the application and transport layers.
Malware protection, flaw remediation, information input validation, and security alerts and advisories, as well as supply chain risk management including vendor assessments and software provenance controls.

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Who Needs This Assessment

  • US federal agencies and departments required to comply with FISMA
  • Organizations pursuing FedRAMP authorization to sell cloud services to the federal government
  • Defense contractors subject to CMMC or DFARS requirements that reference NIST 800-53
  • Cloud service providers and SaaS companies with federal agency customers
  • Healthcare and financial institutions that use 800-53 as their primary control catalog
  • Organizations conducting gap assessments before a formal government security authorization

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Getting Started

The NIST SP 800-53 assessment requires an Organization subscription. Select NIST SP 800-53 from the framework list in the Assess tab. Given its scope of 197 questions, most organizations complete it across multiple sessions — answers save automatically and you can resume at any point. For step-by-step instructions, see the Quickstart guide.