What is the primary objective of ISO 27017?

ISO 27017 provides implementation guidance for applying ISO 27002 controls in cloud environments and introduces seven additional cloud-specific controls (identified as CLD controls). Published in 2015, it addresses shared responsibilities between cloud service providers (CSPs) and cloud service customers (CSCs), focusing on multi-tenancy, virtual machine configuration, segregation, asset return/termination, and customer monitoring of cloud activities.

Who is legally or professionally required to comply with ISO 27017?

No organization is legally required to comply with ISO 27017, as it is a voluntary code of practice, not a mandatory regulation. Professionally, it applies to CSPs operating cloud services and CSCs using public, private, or hybrid clouds across IaaS, PaaS, and SaaS models, particularly those integrating it into an ISO 27001 ISMS to demonstrate cloud security maturity.

Does ISO 27017 require an external audit or third-party certification?

ISO 27017 does not support standalone third-party certification or require a separate external audit. It is implemented within an ISO 27001 ISMS, where auditors assess its 37 extended controls from ISO 27002 and seven CLD controls during ISO 27001 Stage 1 and Stage 2 audits, often noted as an extension on the certificate.

How often should an assessment for ISO 27017 be performed?

Assessments for ISO 27017 controls occur as part of ISO 27001 surveillance audits, typically annually. Re-certification audits, including ISO 27017 evaluation, are required every three years, with continuous monitoring of cloud configurations recommended to maintain control effectiveness.

What are the consequences of non-compliance with ISO 27017?

Non-compliance with ISO 27017 carries no direct legal penalties, as it is not enforceable law. Indirect consequences include increased cloud security risks (e.g., multi-tenant breaches), failure to meet customer procurement demands, regulatory scrutiny under data protection laws, and loss of ISO 27001 certification if cloud controls are inadequately addressed.

Can ISO 27017 be mapped to other international frameworks?

Yes, ISO 27017 controls can be mapped to frameworks like NIST SP 800-53 and CSA STAR for cross-compliance. Its 37 guidance controls from ISO 27002 and seven CLD controls align with shared-responsibility models in FedRAMP and PCI-DSS cloud requirements, enabling unified evidence collection.

What is the first step to begin implementing ISO 27017?

The first step to implement ISO 27017 is to conduct a cloud-specific risk assessment within your ISO 27001 ISMS scope. Identify cloud risks (e.g., shared responsibilities via CLD.6.3.1), then update the Statement of Applicability to select relevant ISO 27002 controls and the seven CLD controls.

What is the primary objective of ITIL?

The primary objective of ITIL is to align IT services with business objectives through its Service Value System (SVS), enabling value co-creation via 34 practices, guiding principles, governance, and continual improvement. ITIL 4 (2019) emphasizes the four dimensions—organizations & people, information & technology, partners & suppliers, value streams & processes—to deliver services that are fit for purpose (utility) and fit for use (warranty), optimizing resource utilization and service quality.

Who is legally or professionally required to comply with ITIL?

No organizations are legally required to comply with ITIL, as it is a voluntary set of best-practice guidelines for IT Service Management (ITSM), not a mandatory regulation. Professionally, IT leaders, service managers, and ITSM practitioners in enterprises adopt it voluntarily, with 87% global IT organizations using it for alignment; certifications via PeopleCert (Foundation to Strategic Leader) are recommended for roles like Service Owner and Process Owner.

Does ITIL require an external audit or third-party certification?

ITIL does not require external audits or third-party certification, as it is a framework of best practices without formal certification mandates. Organizations may pursue voluntary ISO/IEC 20000 certification, which aligns with ITIL practices, but ITIL itself focuses on internal adoption of its 34 practices and SVS; PeopleCert manages practitioner certifications, not organizational audits.

How often should an assessment for ITIL be performed?

ITIL assessments should be performed continuously as part of the Continual Improvement practice within the SVS, with formal gap analyses conducted during initial implementation and periodically thereafter. The ten-step roadmap recommends an initial ITIL-Assessment (Step 4) for baseline, followed by iterative reviews using the seven-step improvement process to measure KPIs like incident resolution times and change success rates.

What are the consequences of non-compliance with ITIL?

There are no legal consequences for non-compliance with ITIL, since it is a non-mandatory framework; potential business impacts include suboptimal service delivery, higher costs, and increased downtime. Adopters missing its practices risk inefficiencies like unaligned IT-business objectives or failure to leverage 34 practices for risk mitigation, but no fines or penalties apply.

Can ITIL be mapped to other international frameworks?

Yes, ITIL can be mapped to other international frameworks, with its practices and SVS designed for integration with models like Agile, DevOps, Lean, and standards such as ISO/IEC 20000. The 34 practices (14 general, 17 service, 3 technical) align via shared processes like incident management and continual improvement, enabling hybrid adoption without prescriptive conflicts.

What is the first step to begin implementing ITIL?

The first step to begin implementing ITIL is Project Preparation, securing executive sponsorship and defining scope as outlined in the ten-step roadmap. This involves developing a business case to quantify benefits like ROI (e.g., up to 38:1), followed by role definition for practices like Change Enablement and Service Desk.

Standards Comparison

ISO 27017 vs ITIL

ISO 27017

Voluntary

2015

International code of practice for cloud information security controls.

ITIL

Voluntary

2019

Global framework for IT service management best practices

Quick Verdict

ISO 27017 provides cloud security controls within ISO 27001 ISMS for CSPs and customers, while ITIL offers ITSM best practices via SVS for service value. Organizations adopt ISO 27017 for cloud risk management and ITIL for aligning IT with business goals.

Cloud Security

ISO 27017

ISO/IEC 27017:2015 Code of practice for cloud security controls

Cost

€€€

Complexity

Medium

Implementation Time

6-12 months

Key Features

Clarifies shared responsibilities between CSPs and CSCs
Introduces seven cloud-specific CLD controls
Provides cloud guidance for 37 ISO 27002 controls
Addresses multi-tenancy and VM segregation/hardening
Enables customer monitoring of cloud services

IT Service Management

ITIL

ITIL 4

Cost

€€€

Complexity

High

Implementation Time

12-18 months

Key Features

Service Value System with 34 flexible practices
Seven guiding principles for decision-making
Four dimensions of service management
Continual improvement register and model
Integration with DevOps, Agile, and Lean

Detailed Analysis

A comprehensive look at the specific requirements, scope, and impact of each standard.

ISO 27017 Details

What It Is

ISO/IEC 27017:2015 is a code of practice extending ISO/IEC 27002 with cloud-specific information security controls. It provides implementation guidance for cloud services across IaaS, PaaS, and SaaS, focusing on shared responsibilities in multi-tenant environments. Its risk-based approach integrates into ISO 27001 ISMS.

Key Components

Guidance on 37 ISO 27002 controls adapted for cloud.
Seven additional CLD controls (e.g., segregation, VM hardening, asset removal).
Dual perspectives for CSPs and CSCs.
Assessed within ISO 27001 certification, no standalone cert.

Why Organizations Use It

Enhances cloud risk management, clarifies responsibilities, supports GDPR/CCPA alignment. Builds trust with customers/regulators, differentiates CSPs in procurement. Reduces incidents from misconfigurations/multi-tenancy.

Implementation Overview

Integrate into existing ISO 27001 ISMS via risk assessment, control mapping, and audits. Key steps: define shared responsibilities, configure segregation/monitoring, update contracts. Suits CSPs/CSCs of all sizes; joint audits take 9-12 months.

ITIL Details

What It Is

ITIL 4 is a globally recognized best-practices framework for IT Service Management (ITSM). Originally developed in the 1980s by the UK's CCTA, it now stands alone (no longer an acronym since 2013). Its primary purpose is aligning IT services with business needs across the full lifecycle, emphasizing value co-creation via the Service Value System (SVS) and a flexible, practice-based approach.

Key Components

**Service Value System (SVS)Guiding principles, governance, service value chain (6 activities), 34 practices (14 general, 17 service, 3 technical), continual improvement.
**Four dimensionsOrganizations/people, information/technology, partners/suppliers, value streams/processes.
7 guiding principles (e.g., focus on value, progress iteratively).
Certification via PeopleCert (Foundation to Strategic Leader).

Why Organizations Use It

Cost savings, reduced downtime (87% adoption), improved satisfaction.
Risk mitigation (e.g., cyber resilience).
Integrates DevOps/Agile; boosts careers/reputation.

Implementation Overview

Ten-step roadmap: assessment, gap analysis, pilots, training.
Phased for all sizes/industries; voluntary, tool-integrated (e.g., CMDB).

Frequently Asked Questions

Common questions about ISO 27017 and ITIL

ISO 27017 FAQ

ITIL FAQ

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What It Is

Key Components

**Service Value System (SVS)Guiding principles, governance, service value chain (6 activities), 34 practices (14 general, 17 service, 3 technical), continual improvement.

**Four dimensionsOrganizations/people, information/technology, partners/suppliers, value streams/processes.

7 guiding principles (e.g., focus on value, progress iteratively).

Certification via PeopleCert (Foundation to Strategic Leader).