The Federal Information Security Management Act (FISMA) is a US federal law enacted in 2002 and substantially updated by the Federal Information Security Modernization Act of 2014. It establishes a comprehensive framework requiring federal agencies to develop, document, and implement information security programmes to protect government information, operations, and assets from natural and man-made threats.
FISMA applies to all federal executive branch agencies and extends to any organisation that processes, stores, or transmits federal information on behalf of the government — including contractors, subcontractors, state agencies administering federal programmes such as Medicaid and unemployment insurance, and private sector organisations operating under federal contracts. Defense contractors handling Controlled Unclassified Information (CUI) are additionally subject to NIST SP 800-171, which implements many of the same principles as FISMA for non-federal systems.
FISMA compliance is built on the NIST Risk Management Framework (NIST SP 800-37) and the NIST SP 800-53 security and privacy controls catalogue — which provides over 1,000 security controls across 20 control families covering access control, incident response, contingency planning, configuration management, and more. Non-compliance can result in federal funding reductions, congressional censure, reputational damage, and — for contractors — loss of federal contracts.