NIST 800-171
U.S. standard protecting CUI in nonfederal systems
GDPR UK
UK regulation for personal data protection compliance
Quick Verdict
NIST 800-171 safeguards CUI for US contractors via contract clauses, while GDPR UK mandates personal data protection for all UK processors with hefty fines. Contractors adopt 800-171 for DoD eligibility; others use GDPR UK to avoid multimillion penalties and build trust.
NIST 800-171
NIST SP 800-171: Protecting CUI in Nonfederal Systems
Key Features
- Safeguards CUI confidentiality in nonfederal systems
- Mandates SSP and POA&M documentation artifacts
- Organizes requirements into 17 control families
- Enables CUI enclave isolation for scoping
- Supports FedRAMP Moderate cloud equivalence
GDPR UK
UK General Data Protection Regulation (UK GDPR)
Key Features
- Seven core processing principles with accountability
- Data subject rights including erasure and portability
- Risk-based DPIAs for high-risk processing
- 72-hour ICO breach notification requirement
- Fines up to 4% of global annual turnover
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
NIST 800-171 Details
What It Is
NIST SP 800-171 Revision 3 is a U.S. federal cybersecurity framework providing recommended security requirements to protect Controlled Unclassified Information (CUI) confidentiality in nonfederal systems. Its primary scope targets contractors handling CUI, using a control-based approach tailored from SP 800-53 Moderate baseline, emphasizing confidentiality via scoped applicability to CUI-processing components.
Key Components
- 97 requirements across 17 families (e.g., Access Control, Audit, Supply Chain Risk Management).
- Core artifacts: System Security Plan (SSP) and Plan of Action and Milestones (POA&M).
- Assessment procedures in SP 800-171A r3 (examine/interview/test).
- Built on FIPS 200, supports tailoring and compensating controls.
Why Organizations Use It
Federal contractors require it via DFARS 252.204-7012 for contract eligibility. Benefits include risk reduction, CMMC readiness, supply chain trust, and FedRAMP cloud leverage. Enhances resilience against breaches, boosts competitive bidding.
Implementation Overview
Phased approach: scope CUI enclave, gap analysis, implement controls (MFA, SIEM), document SSP/POA&M. Applies to DoD suppliers, scalable by size; audits via self or C3PAO. Timelines 6-36 months.
GDPR UK Details
What It Is
UK General Data Protection Regulation (UK GDPR) is the UK's post-Brexit retained version of EU GDPR, a binding legal regulation enforced by the Information Commissioner’s Office (ICO). It governs personal data processing with a risk-based, accountability-driven approach, applying to UK-established entities and those targeting UK individuals extra-territorially.
Key Components
- **Seven principleslawfulness, fairness/transparency, purpose limitation, data minimisation, accuracy, storage limitation, integrity/confidentiality, accountability.
- Data subject rights (access, rectification, erasure, portability, objection).
- Controller/processor obligations (RoPAs, contracts, DPIAs, breaches).
- Principle-based; no fixed controls, emphasizes demonstrable compliance.
Why Organizations Use It
- Mandatory compliance avoids fines up to £17.5M or 4% global turnover.
- Mitigates breach/litigation risks, enhances security.
- Builds stakeholder trust, supports data-driven innovation, improves efficiency.
Implementation Overview
- Phased: governance setup, data mapping (RoPA), policies/contracts, training, DPIAs, monitoring.
- All sizes/industries processing UK data; ICO audits/enforcement, no certification.
Key Differences
| Aspect | NIST 800-171 | GDPR UK |
|---|---|---|
| Scope | CUI confidentiality in nonfederal systems | Personal data protection principles and rights |
| Industry | US federal contractors, defense supply chain | All sectors processing UK personal data |
| Nature | Contractual security requirements, recommended | Mandatory regulation with fines |
| Testing | SPRS scoring, CMMC assessments, self/3rd-party | DPIAs, audits, ICO investigations |
| Penalties | Contract ineligibility, no direct fines | Up to 4% global turnover fines |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about NIST 800-171 and GDPR UK
NIST 800-171 FAQ
GDPR UK FAQ
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