ISO 20000
International standard for service management systems
ISO 27017
International code of practice for cloud security controls.
Quick Verdict
ISO 20000 certifies service management systems for reliable IT delivery, while ISO 27017 provides cloud-specific security guidance within ISO 27001 ISMS. Organizations adopt 20000 for service excellence and 27017 for cloud risk mitigation and procurement trust.
ISO 20000
ISO/IEC 20000-1:2018 Service management system requirements
Key Features
- Adopts Annex SL for integrated management systems
- Certifiable requirements for service management systems
- End-to-end service lifecycle operational controls
- Mandates leadership accountability and PDCA cycles
- Flexible with ITIL, DevOps, and multi-supplier support
ISO 27017
ISO/IEC 27017:2015 Code of practice for cloud security
Key Features
- Clarifies shared responsibilities between CSPs and CSCs
- Adds 7 cloud-specific controls like VM segregation
- Provides guidance for 37 ISO 27002 cloud adaptations
- Addresses multi-tenancy and virtualization security risks
- Integrates into ISO 27001 audits without standalone cert
Detailed Analysis
A comprehensive look at the specific requirements, scope, and impact of each standard.
ISO 20000 Details
What It Is
ISO/IEC 20000-1:2018 is the certifiable international standard for service management systems (SMS). It specifies auditable requirements to establish, implement, maintain, and improve SMS covering the full service lifecycle. Adopts Annex SL high-level structure and PDCA methodology for risk-based, flexible service delivery.
Key Components
- Clauses 4-10: context, leadership, planning, support, operation, performance evaluation, improvement.
- Clause 8 operational domains: service portfolio, relationships, supply/demand, design/transition, resolution, assurance.
- Core processes: incident/problem management, change/release, configuration/asset, availability/continuity, security.
- Independent third-party certification model.
Why Organizations Use It
- Builds trust, reduces risks, improves efficiency (e.g., 50% certificate growth, 69% trust boost).
- Enables market differentiation, customer retention, supplier governance.
- Integrates with ISO 9001, ISO 27001 for unified compliance.
- Voluntary but driven by contracts, RFPs, resilience needs.
Implementation Overview
- Phased: gap analysis, design, deploy, audit, certify (12-18 months typical).
- Applies to all sizes/industries delivering services (IT, cloud, BPO).
- Requires internal audits, management reviews, continual improvement.
ISO 27017 Details
What It Is
ISO/IEC 27017:2015 is a code of practice extending ISO/IEC 27002 with cloud-specific guidance. It provides implementation advice for information security controls in cloud services across IaaS, PaaS, SaaS, public, private, and hybrid models. Its risk-based approach clarifies shared responsibilities between cloud service providers (CSPs) and customers (CSCs).
Key Components
- Guidance on 37 ISO/IEC 27002 controls adapted for cloud environments.
- 7 additional cloud-specific controls (e.g., CLD.6.3.1 for roles, CLD.9.5.1 for segregation).
- Domains mirror 27002: access control, operations, supplier relationships.
- Integrated into ISO 27001 ISMS; no standalone certification.
Why Organizations Use It
- Addresses cloud risks like multi-tenancy, virtualization, data remanence.
- Supports regulatory alignment (GDPR, CCPA) and procurement demands.
- Enhances risk management, stakeholder trust, competitive differentiation.
- Builds on 27001 baseline for cloud assurance.
Implementation Overview
- Extend existing ISO 27001 ISMS via risk assessment, control mapping.
- Key activities: define shared responsibilities, configure VM hardening, enable monitoring.
- Suits CSPs, CSCs of all sizes; global applicability.
- Audited within 27001 certification (9-12 months joint audits).
Key Differences
| Aspect | ISO 20000 | ISO 27017 |
|---|---|---|
| Scope | Service management systems (SMS) lifecycle | Cloud-specific information security controls |
| Industry | All service providers, IT and beyond, global | Cloud service providers/customers, global |
| Nature | Certifiable management system standard | Guidance/code of practice for ISO 27001 |
| Testing | Stage 1/2 audits, surveillance, internal audits | Assessed within ISO 27001 audits |
| Penalties | Loss of certification, no legal penalties | No standalone cert, tied to 27001 loss |
Scope
Industry
Nature
Testing
Penalties
Frequently Asked Questions
Common questions about ISO 20000 and ISO 27017
ISO 20000 FAQ
ISO 27017 FAQ
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