NIST CSF
Voluntary framework for managing cybersecurity risks organization-wide
ISO 27017
International code of practice for cloud security controls
Quick Verdict
NIST CSF offers voluntary cybersecurity risk management for all organizations, while ISO 27017 provides cloud-specific control guidance within ISO 27001 ISMS. Companies adopt NIST CSF for flexible risk frameworks and ISO 27017 for auditable cloud security.
NIST CSF
NIST Cybersecurity Framework Version 2.0
Key Features
- Adds Govern function as overarching governance pillar
- Profiles enable current vs target gap analysis
- Tiers assess cybersecurity risk management maturity
- Core structured by Functions, Categories, Subcategories
- Maps to ISO 27001, NIST 800-53 standards
ISO 27017
ISO/IEC 27017:2015 Cloud Security Controls
Key Features
- Clarifies shared responsibilities between CSPs and CSCs
- Adds seven cloud-specific CLD security controls
- Provides guidance for 37 ISO 27002 controls in cloud
- Addresses multi-tenancy and VM segregation hardening
- Integrates into ISO 27001 ISMS audits seamlessly
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
NIST CSF Details
What It Is
NIST Cybersecurity Framework (CSF) 2.0 is a voluntary, risk-based guideline for managing cybersecurity risks. Developed by NIST, it provides flexible structure for organizations of all sizes and sectors to assess, prioritize, and improve cybersecurity programs through a common language and outcomes-focused approach.
Key Components
- **Framework CoreSix functions (Govern, Identify, Protect, Detect, Respond, Recover), organized into 22 categories and 112 subcategories with informative references to standards like ISO 27001 and NIST SP 800-53.
- **Implementation TiersFour tiers (Partial to Adaptive) evaluate risk management sophistication.
- **ProfilesCurrent and Target profiles align business needs with Core outcomes for gap analysis. No formal certification; self-attestation suffices.
Why Organizations Use It
Enhances risk communication, supports compliance (mandatory for U.S. federal agencies), reduces threats via prioritization, builds stakeholder trust, and integrates with enterprise risk management. Offers competitive edge through demonstrated due care and supply chain focus.
Implementation Overview
Start with Current Profile assessment, identify gaps to Target Profile, prioritize via Tiers. Applicable globally across industries; involves policy development, training, monitoring. Quick starts for SMEs; full adoption scalable, typically 6-12 months with tooling support.
ISO 27017 Details
What It Is
ISO/IEC 27017:2015 is a code of practice extending ISO/IEC 27002 with cloud-specific guidance for information security controls. Its primary purpose is to address cloud computing risks like shared responsibility and multi-tenancy in public, private, and hybrid environments. It uses a control-based approach integrated into an ISO 27001 ISMS, providing implementation advice rather than standalone certification.
Key Components
- Guidance on 37 ISO 27002 controls adapted for cloud contexts.
- Seven additional CLD controls covering responsibility delineation, virtual machine configuration, segregation, monitoring, and asset removal.
- Built on ISO 27001 for risk-based selection.
- Assessed via ISO 27001 audits with 27017 scope extension; no independent cert.
Why Organizations Use It
- Meets procurement demands for cloud assurance.
- Clarifies CSP-CSC responsibilities, reducing risk gaps.
- Supports regulations like GDPR via aligned controls.
- Enhances trust and differentiates CSPs.
Implementation Overview
- Integrate into existing ISO 27001 ISMS via risk assessment and control mapping.
- Key activities: document shared responsibilities, configure VM hardening, enable logging.
- Suits CSPs, CSCs across sizes/industries; global applicability.
- Requires auditor-included scope for certification. (178 words)
Key Differences
| Aspect | NIST CSF | ISO 27017 |
|---|---|---|
| Scope | Cybersecurity risk management framework | Cloud-specific security controls guidance |
| Industry | All sectors, global applicability | Cloud providers and customers worldwide |
| Nature | Voluntary framework, no certification | Code of practice, ISO 27001 extension |
| Testing | Self-assessment via Profiles and Tiers | Audits within ISO 27001 certification |
| Penalties | None, voluntary adoption | Loss of ISO 27001 certification |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about NIST CSF and ISO 27017
NIST CSF FAQ
ISO 27017 FAQ
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