In the digital era where cloud computing has become the backbone of modern businesses, traditional security frameworks need to evolve. While ISO 27001 has long been the gold standard for information security, it doesn’t fully address the nuances of cloud environments. This is where ISO 27017 steps in.
Both ISO 27001 and ISO 27017 play critical roles in securing sensitive data, but they serve slightly different purposes. Understanding how they work together is key for organizations looking to strengthen their cybersecurity posture, especially in cloud-based infrastructures.
What is ISO 27001?
ISO/IEC 27001 is an international standard for Information Security Management Systems (ISMS). It provides a systematic approach to managing sensitive information, ensuring its confidentiality, integrity, and availability.
Key features of ISO 27001:
- Applicable to any organization, regardless of size or industry
- Defines how to establish, implement, maintain, and improve an ISMS
- Uses a risk-based approach to identify and treat information security risks
- Includes a set of 114 security controls outlined in Annex A
ISO 27001 is widely adopted because it provides a framework for overall information security management, not just for IT or cloud operations.
What is ISO 27017?
ISO/IEC 27017, officially titled Code of practice for information security controls based on ISO/IEC 27002 for cloud services, was developed to address cloud-specific security risks that ISO 27001 and ISO 27002 don’t cover in depth.
Key highlights of ISO 27017:
- Built on top of ISO 27002, which provides guidance on implementing controls from ISO 27001
- Adds cloud-specific controls and implementation guidance
- Designed for both cloud service providers and cloud service customers
- Bridges the gap between traditional ISMS frameworks and cloud computing environments
Essentially, ISO 27017 helps organizations tailor their information security controls to cloud platforms, considering challenges like multi-tenancy, virtualization, and shared responsibility.
ISO 27001 vs. ISO 27017: Key Differences
| Feature | ISO 27001 | ISO 27017 |
|---|---|---|
| Focus | General information security across all types of organizations | Cloud-specific security controls |
| Type of Standard | Management system standard | Code of practice (guidance) |
| Scope | Organization-wide security governance | Cloud service operations (provider & customer) |
| Controls | 114 controls in Annex A (general) | Adds 7 new cloud-specific controls + 1 customer/provider guidance |
| Target Audience | Any organization managing information | Cloud service providers (CSPs) & customers |
| Certification | Certifiable standard | Not certifiable on its own (used to supplement ISO 27001) |
While ISO 27001 provides the “what”, ISO 27017 delivers the “how” in a cloud context.
Why ISO 27017 is Gaining Popularity
As businesses increasingly migrate to cloud environments, threats such as data leakage, misconfigurations, and shadow IT are becoming more prominent. ISO 27017 addresses:
- Cloud-specific threats such as loss of control, insecure APIs, and service unavailability
- Responsibility ambiguities between cloud providers and customers
- Vendor risk management and third-party access to data
- Cloud service provisioning and service level agreements (SLAs)
Because of this, ISO 27017 is poised to become as significant as ISO 27001 and ISO 27002 in the coming years.
What Are the Additional Controls in ISO 27017?
ISO 27017 includes seven additional cloud-specific controls and one clarified control for responsibilities between the customer and provider. These include:
- Shared roles and responsibilities (6.3.1) – Defining roles between cloud customers and providers.
- Removal of customer assets (11.1.5) – Guidelines for properly removing customer data.
- Virtual machine configurations (12.1.5) – Securing VMs in a cloud environment.
- Administrative operations and procedures (12.4.5) – How administrators should securely manage cloud resources.
- Cloud customer monitoring (12.7.5) – Ensuring customers can monitor their use of cloud services.
- Alignment with cloud SLA (13.1.4) – Clear communication and agreements in SLAs.
- Virtual storage segregation (14.1.1) – Isolating customer data in shared cloud infrastructures.
These controls enhance the depth and clarity of existing security controls to suit cloud deployments.
Using ISO 27017 Alongside ISO 27001
ISO 27017 is not a standalone framework. Instead, it complements ISO 27001 by:
- Offering cloud-specific guidance during ISO 27001 implementation
- Enhancing the Annex A controls with cloud-related examples and recommendations
- Helping organizations prove due diligence when using or offering cloud services
Many cloud service providers use ISO 27017 to differentiate themselves in the marketplace by showcasing higher levels of security and transparency.
ISO 27017 vs. ISO 27018: A Quick Note
While ISO 27017 focuses on security controls in cloud computing, ISO 27018 is concerned with privacy protection in cloud environments, especially for personally identifiable information (PII).
Organizations handling PII in the cloud should consider both ISO 27017 and ISO 27018 for a comprehensive cloud governance model.
Benefits of Adopting ISO 27017
Adopting ISO 27017 offers several advantages:
- Improved cloud security posture
- Clarified responsibilities between cloud provider and customer
- Better alignment with international regulations like GDPR
- Stronger customer trust and credibility
- Reduced risk of data breaches and cloud misconfigurations
Whether you are a SaaS provider or a business consuming cloud services, ISO 27017 enhances your ability to manage cloud-related risks effectively.
Conclusion: ISO 27017 – A Must-Have in the Cloud Era
In a time when cloud adoption is accelerating, ISO 27017 fills a critical gap in information security management by adding cloud-native controls to the ISO 27001 framework. While ISO 27001 remains foundational for building a robust ISMS, ISO 27017 extends that foundation into the complexities of modern cloud environments.
For businesses operating in or transitioning to the cloud, adopting both ISO 27001 and ISO 27017 demonstrates a strong commitment to security and compliance — and future-proofs your operations against evolving threats.