TheArtOfService
Cross-Framework Mapping

ISO 27799vsNIST SP 800-66

See exactly how ISO 27799 controls map to NIST SP 800-66. Pre-computed mappings, identified gaps, and coverage analysis.

18
Controls Mapped
28
Gaps Found
26%
Coverage

According to the TheArtOfService Compliance Knowledge Graph:

ISO 27799 maps to NIST SP 800-66 with 26% coverage across 12 directly mapped controls. Analysis of 46 ISO 27799 controls identifies 34 compliance gaps — primarily concentrated in Operations.

Source: TheArtOfService Knowledge Graph | 46 controls analysed | 718 frameworks | 332K+ cross-framework mappings

Control Mappings

Showing 18 of 18 mapped controls across 4 domains. Sign up to explore all 332K+ mappings across 718 frameworks.

ISO 27799: Patient Data Protection(7 mappings)

ISO27799-01ePHI access controls and authorization3 targets
→NISTSP66-2Workforce Security, Information Access Management, and Awareness Training
→NISTSP66-5Physical Safeguards: Facility Access, Workstation Use and Security, Device and Media Controls
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication
ISO27799-02ePHI encryption at rest and in transit
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication
ISO27799-03Minimum necessary standard enforcement
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication
ISO27799-04Patient data de-identification procedures
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication
ISO27799-05Audit trail for ePHI access
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication

ISO 27799: Administrative Safeguards(6 mappings)

ISO27799-06Security management process and risk analysis
→NISTSP66-1Security Management Process: Risk Analysis and Risk Management for ePHI
ISO27799-07Workforce security and clearance procedures
→NISTSP66-2Workforce Security, Information Access Management, and Awareness Training
ISO27799-08Information access management3 targets
→NISTSP66-2Workforce Security, Information Access Management, and Awareness Training
→NISTSP66-5Physical Safeguards: Facility Access, Workstation Use and Security, Device and Media Controls
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication
ISO27799-09Security awareness and training program
→NISTSP66-2Workforce Security, Information Access Management, and Awareness Training

ISO 27799: Technical Safeguards(2 mappings)

ISO27799-12Unique user identification and authentication
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication
ISO27799-16Transmission security and encryption
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication

ISO 27799: Physical Safeguards(3 mappings)

ISO27799-17Facility access controls3 targets
→NISTSP66-2Workforce Security, Information Access Management, and Awareness Training
→NISTSP66-5Physical Safeguards: Facility Access, Workstation Use and Security, Device and Media Controls
→NISTSP66-6Technical Safeguards: Access Control, Audit Controls, Integrity, Person Authentication

Related Comparisons

Other ISO 27799 comparisons

ISO 27799 vs MDS2 (Medical Device)12 mappingsISO 27799 vs MARS-E12 mappingsISO 27799 vs ISO 1348512 mappingsISO 27799 vs NIST Privacy Framework11 mappingsISO 27799 vs AWWA Cybersecurity Guidance for the Water Sector (American Water Works Association)11 mappingsISO 27799 vs NIST SP 800-171A Rev 3 - Assessing CUI Security Requirements10 mappingsISO 27799 vs Oman National Cybersecurity Framework10 mappingsISO 27799 vs FTC GLBA Safeguards Rule (16 CFR Part 314)10 mappings

Other NIST SP 800-66 comparisons

Turkey KVKK vs NIST SP 800-664 mappingsPrivacy Act 1988 (Australia) vs NIST SP 800-664 mappingsNIST SP 800-171A Rev 3 - Assessing CUI Security Requirements vs NIST SP 800-664 mappingsISO 13485 vs NIST SP 800-664 mappingsAWWA Cybersecurity Guidance for the Water Sector (American Water Works Association) vs NIST SP 800-664 mappingsBSI IT-Grundschutz vs NIST SP 800-664 mappingsAnnex 11 to EU GMP - Computerised Systems vs NIST SP 800-664 mappingsISO 27019 vs NIST SP 800-664 mappings

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What are the key differences between ISO 27799 and NIST SP 800-66?

ISO 27799 has 46 controls across its framework, while NIST SP 800-66 covers 8 controls. Direct mapping analysis identifies 12 overlapping controls (26% coverage). The frameworks diverge most significantly in Operations, where 4 ISO 27799 controls have no direct NIST SP 800-66 equivalent.

How many controls map between ISO 27799 and NIST SP 800-66?

Of 46 total ISO 27799 controls, 12 map directly to NIST SP 800-66 controls — representing 26% coverage. The remaining 34 controls represent compliance gaps requiring additional documentation or compensating controls to satisfy both frameworks simultaneously.

What are the compliance gaps when mapping ISO 27799 to NIST SP 800-66?

34 ISO 27799 controls have no direct equivalent in NIST SP 800-66. The highest concentration of gaps is in Operations with 4 unmapped controls. These gaps represent areas where additional controls, policies, or documentation must be created to achieve compliance with both frameworks.

Which control domains have the most gaps between ISO 27799 and NIST SP 800-66?

The domain with the highest gap count is Operations (4 gaps). Export the full domain-by-domain gap breakdown via the Professional tier to generate a prioritised remediation roadmap.

Related Resources

How to Map Controls Across Frameworks|Multi-Framework Compliance Guide|Compliance Glossary

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