ISO 27799 vs NIST SP 800-66

What is the difference between ISO 27799 and NIST SP 800-66?

ISO 27799 is a information security framework applying in International, with 46 controls across 18 domains. NIST SP 800-66 is a information security framework applying in the United States, with 8 controls across 8 domains. Both govern the same subject, so their requirements overlap; the mapping below shows which controls carry across and which are asked for by only one of them.

ISO 2779946 controls

NIST SP 800-668 controls

Questions people ask about ISO 27799 and NIST SP 800-66

What is the difference between ISO 27799 and NIST SP 800-66?

ISO 27799 has 46 controls while NIST SP 800-66 has 8 controls. Both frameworks address compliance requirements but differ in scope, focus, and applicability. Use our platform to explore the exact control-to-control mappings.

Do I need both ISO 27799 and NIST SP 800-66?

Whether you need both depends on your industry, regulatory requirements, and customer expectations. Many organizations implement multiple frameworks simultaneously. Our compliance platform helps you map controls between ISO 27799 and NIST SP 800-66 so you can identify shared requirements and avoid duplicate effort.

How do ISO 27799 and NIST SP 800-66 controls map to each other?

Our platform maps controls between ISO 27799 and NIST SP 800-66 at a granular level. Each mapping shows whether controls are fully aligned, partially aligned, or represent gaps. This helps you prioritize implementation when pursuing both frameworks.

Which framework should I implement first, ISO 27799 or NIST SP 800-66?

The best starting point depends on your specific regulatory requirements, industry, and customer demands. Consider which framework is most urgently required by your stakeholders or regulators. Use our free compliance platform to run a gap analysis and determine the optimal implementation sequence.