Frameworks · Global

ISO 27017:2026

ISO/IEC 27017 is the code of practice for information security in cloud services. It takes every ISO/IEC 27002:2022 control and adds guidance for cloud service customers and cloud service providers where the cloud changes how the control is applied, and introduces four cloud-only controls covering shared responsibilities, cloud service partners, isolation in virtual environments and detection of unauthorized cloud use. It is usually certified as an extension of an ISO/IEC 27001 ISMS and is often requested by customers of SaaS, PaaS and IaaS providers.

Version
ISO/IEC 27017:2026
Requirements
101, each mapped to ProofTrail’s controls

Requirements and controls

  • 5 Organization-level controls

    • 5.1 Security policies and topic-specific policies

      The security policy set covers cloud computing: as a cloud customer the organization states how cloud services may be used, and as a provider it defines the security rules its service follows for tenants.

      • Security Governance Program
      • Information Security & Privacy Policies
      • Management Review of Policies
      • Periodic Policy Acknowledgement
      • Shared Responsibility Model
    • 5.2 Security roles and duties

      Security responsibilities for using or providing cloud services are defined, assigned to named roles and made known to the people who hold them.

      • Assigned Security & Privacy Responsibilities
      • Roles & Responsibilities
      • Cybersecurity Responsibilities
      • Compliance Program Manager
      • People Operations Owner
      • Shared Responsibility Model
    • 5.3 Separating conflicting duties

      Conflicting duties are split in cloud administration as elsewhere, so no single administrator can both make and approve a sensitive change.

      • Segregation of Duties
      • Organizational Structure
      • Roles & Responsibilities
    • 5.4 Management's security responsibilities

      Managers require the staff and contractors who administer or use cloud services to follow the organization's security policies and procedures.

      • Security & Privacy Program Review
      • Periodic Policy Acknowledgement
      • New Hire Security & Privacy Training
      • Periodic Security & Privacy Training
    • 5.5 Liaison with authorities

      The organization knows which authorities have jurisdiction over its cloud services and the data in them, including where its providers operate, and keeps a way to reach them.

      • Cybersecurity Responsibilities
    • 5.6 Liaison with specialist security groups

      The organization follows cloud security forums and specialist groups to keep up with cloud-specific threats and good practice.

      • Cybersecurity Responsibilities
    • 5.7 Threat intelligence gathering

      Threat information relevant to the cloud platforms the organization uses or offers is collected, analyzed and turned into protective action.

      • Anomalous Behavior Detection
      • Centralized Security Logging
      • Vulnerability Remediation Process
      • Incident Management Policy & Procedure
    • 5.8 Security in projects

      Projects that adopt or change cloud services consider security from the start, including how responsibilities are split with the provider.

      • Risk Assessment
      • Change Management Policy & Procedure
      • Approval of Changes
      • Shared Responsibility Model
    • 5.9 Asset and information inventory

      The inventory covers assets held in the cloud, such as accounts, virtual machines, storage and customer data, and names an owner for each.

      • Inventory of Infrastructure Assets
      • Inventory of Endpoint Assets
      • Asset Inventory Updates
      • Asset Ownership Assignment
    • 5.10 Rules for acceptable use of assets

      Acceptable use rules extend to cloud resources and the data they hold, and customers know what use of the service is permitted.

      • Rules of Behavior
      • Endpoint Security Policy
    • 5.11 Returning assets

      When a cloud service ends, customer data and other assets are returned or removed on agreed terms, and the provider documents how and when that happens.

      • Human Resources Policy & Procedure
      • Inventory of Endpoint Assets
      • Data Retention Policy
      • Contractual Obligations Register
    • 5.12 Information classification

      Information placed in cloud services is classified, and the classification decides which services and safeguards may be used for it.

      • Data Classification Policy
      • Data Classification Labels
    • 5.13 Information labels

      Classification labels are applied to data and resources held in cloud services so that handling rules remain visible.

      • Data Classification Labels
      • Data Classification Policy
    • 5.14 Transferring information

      Data moving to, from or between cloud services is protected in transit and covered by agreed transfer rules.

      • Transmission Confidentiality
      • Network Security Policy & Procedure
      • Third-Party Criticality Assessments
    • 5.15 Access control rules

      Access rules cover cloud consoles, APIs and stored data, and the provider's access features are used to enforce them.

      • Access Control Policy & Procedure
      • Identity Validation
      • Production Database Access Restriction
    • 5.16 Managing identities

      Identities used with cloud services, including administrator and service accounts, are created, changed and removed through a controlled process.

      • Identity Validation
      • User Access Reviews
      • Termination of Employment
    • 5.17 Managing authentication secrets

      Passwords, keys and other secrets used to reach cloud services are issued, stored and rotated securely.

      • Password Management Guidelines
      • Multi-Factor Authentication
      • Access Control Policy & Procedure
    • 5.18 Granting and reviewing access rights

      Access rights to cloud services are granted by role, reviewed periodically and withdrawn when no longer needed, using the provider's access management functions.

      • Access Control Policy & Procedure
      • Identity Validation
      • User Privilege Reviews
      • User Access Reviews
      • Production System Access Review
      • Termination of Employment
    • 5.19 Supplier security

      Cloud providers are managed as suppliers: their security is assessed before adoption and kept under review for the life of the relationship.

      • Vendor Management Policy & Procedure
      • Third-Party Criticality Assessments
      • Management Review of Third-Party Risks
    • 5.20 Security terms in supplier agreements

      Agreements with cloud providers record security commitments, the split of responsibilities, service levels, data location and how data is handed back at exit.

      • Vendor Management Policy & Procedure
      • Third-Party Criticality Assessments
      • Subservice Organization Evaluation
      • Contractual Obligations Register
      • Shared Responsibility Model
    • 5.21 ICT supply chain security

      Security expectations flow down the cloud supply chain, including to the providers that a cloud service itself depends on.

      • Vendor Management Policy & Procedure
      • Third-Party Criticality Assessments
      • Subservice Organization Evaluation
      • Management Review of Third-Party Risks
    • 5.22 Supplier service monitoring and change

      The organization monitors its cloud providers against their commitments and assesses the impact of service changes they announce.

      • Management Review of Third-Party Risks
      • Third-Party Criticality Assessments
      • Subservice Organization Evaluation
    • 5.23 Security of cloud service use

      The organization governs how cloud services are chosen, used, operated and exited so they meet its security requirements.

      • Vendor Management Policy & Procedure
      • Shared Responsibility Model
      • Subservice Organization Evaluation
      • Third-Party Criticality Assessments
    • 5.24 Incident response planning

      Customer and provider agree in advance who does what during an incident, including how each side reports events that affect the cloud service.

      • Incident Management Policy & Procedure
      • Incident Tracking
      • Automated Incident Reporting
      • Incident Reporting Assistance
      • Shared Responsibility Model
    • 5.25 Triage of security events

      Security events in cloud services are assessed to decide whether they are incidents, drawing on information from both the organization and its provider.

      • Incident Management Policy & Procedure
      • Incident Tracking
    • 5.26 Responding to incidents

      Incidents involving cloud services are contained and resolved under agreed procedures, with customer and provider coordinating where needed.

      • Incident Management Policy & Procedure
      • Incident Tracking
      • Breach Risk Assessment & Notification
    • 5.27 Lessons from incidents

      Lessons from cloud-related incidents are used to strengthen controls on both sides of the shared responsibility split.

      • Incident Management Policy & Procedure
      • Incident Tracking
      • Security & Privacy Program Review
    • 5.28 Evidence collection

      Logs, snapshots and other evidence about incidents in cloud environments can be collected and preserved, including from the provider when required.

      • Incident Management Policy & Procedure
      • Centralized Security Logging
    • 5.29 Security during disruption

      Security is maintained while cloud services are disrupted, for example during failover between regions or providers.

      • Business Continuity Policy & Procedure
      • Disaster Recovery Policy
      • Disaster Recovery Testing
    • 5.30 ICT readiness for continuity

      Cloud service levels, backup and failover capabilities are checked against the organization's recovery time and recovery point objectives.

      • Disaster Recovery Policy
      • Business Continuity Policy & Procedure
      • Disaster Recovery Testing
      • Backup Restoration Testing
    • 5.31 Legal, regulatory and contractual obligations

      Laws and contract terms that apply to cloud processing, including the jurisdictions where data is stored, are identified and met.

      • Data Governance
      • Statutory, Regulatory & Contractual Compliance
      • Contractual Obligations Register
      • Cross-Border Data Transfers
    • 5.32 Intellectual property

      Software licences and other intellectual property are respected when software runs in, or is delivered as, a cloud service.

      • Statutory, Regulatory & Contractual Compliance
    • 5.33 Protecting records

      Records kept in cloud services are protected against loss, tampering and unauthorized access for their full retention period.

      • Policy Documentation Retention
      • Data Retention Policy
      • Statutory, Regulatory & Contractual Compliance
    • 5.34 Privacy and PII obligations

      Personal data processed in cloud services is protected in line with privacy law and contractual commitments.

      • Data Protection Policy & Procedure
      • Privacy Officer
      • Privacy by Design Policy
      • Personal Data Inventory
    • 5.35 Independent security review

      Cloud security arrangements are reviewed independently, and providers back their claims with independent audit reports or certifications.

      • Internal Audit
      • Security & Privacy Program Review
      • Penetration Testing
      • Subservice Organization Evaluation
    • 5.36 Conformance with security policies

      Compliance with the security rules for using and providing cloud services is checked regularly.

      • Internal Audit
      • Management Review of Policies
      • Statutory, Regulatory & Contractual Compliance
    • 5.37 Written operating procedures

      Procedures for administering cloud services, especially operations that are risky or hard to undo, are written down and available to the people who perform them.

      • Information Security & Privacy Policies
      • ISMS Manual
      • Change Management Policy & Procedure
      • Data Backup Policy
      • Deployment Notifications
    • 5.38 Shared cloud security responsibilities

      Customer and provider identify, document, communicate and carry out their respective security responsibilities for the cloud service.

      • Shared Responsibility Model
      • Contractual Obligations Register
      • Subservice Organization Evaluation
    • 5.39 Cloud service partner responsibilities

      When a cloud service partner such as a broker, integrator or auditor is involved, its security roles and responsibilities are agreed with the customer and the provider.

      • Shared Responsibility Model
      • Contractual Obligations Register
      • Vendor Management Policy & Procedure
      • Third-Party Criticality Assessments
  • 6 Controls for people

    • 6.1 Background screening

      People who administer cloud services or can reach customer data are screened in proportion to the sensitivity of that access.

      • Personnel Screening
      • Competency Screening
    • 6.2 Employment terms

      Employment terms make cloud-related security duties, including protecting customer data, part of each person's obligations.

      • Code of Business Conduct
      • New Hire Policy Acknowledgement
      • Human Resources Policy & Procedure
      • Roles & Responsibilities
    • 6.3 Security awareness and training

      Staff are trained on the secure use or administration of the cloud services that relate to their roles.

      • Security & Privacy Awareness
      • New Hire Security & Privacy Training
      • Periodic Security & Privacy Training
    • 6.4 Disciplinary action for breaches

      Breaches of cloud security rules are handled through the formal disciplinary process.

      • Code of Business Conduct
      • Human Resources Policy & Procedure
    • 6.5 Duties after leaving or changing role

      Cloud access and duties are adjusted or removed when someone leaves or changes role, and confidentiality obligations continue afterwards.

      • Human Resources Policy & Procedure
      • Termination of Employment
    • 6.6 Confidentiality agreements

      Confidentiality agreements cover information held in, or learned through, cloud services.

      • New Hire Policy Acknowledgement
      • Periodic Policy Acknowledgement
      • Contractual Obligations Register
    • 6.7 Remote work security

      People who reach cloud services from outside the office do so from protected devices and connections.

      • Endpoint Security Policy
      • Endpoint Encryption
      • Multi-Factor Authentication
      • Session Lock
      • Malware Protection
    • 6.8 Reporting security events

      Staff, customers and providers have channels to report security events affecting cloud services quickly.

      • Automated Incident Reporting
      • Incident Reporting Assistance
      • Incident Management Policy & Procedure
  • 7 Controls for premises and equipment

    • 7.1 Physical perimeters

      Facilities hosting cloud services have defined secure perimeters; customers rely on provider assurance for data center perimeters.

      • Physical Protection Policy & Procedure
    • 7.2 Controlled physical entry

      Entry to areas housing cloud infrastructure is limited to authorized people.

      • Physical Protection Policy & Procedure
    • 7.3 Securing offices and facilities

      Offices and rooms used to manage cloud services are physically secured.

      • Physical Protection Policy & Procedure
    • 7.4 Monitoring of premises

      Premises that host cloud infrastructure are watched for unauthorized physical access.

      • Physical Protection Policy & Procedure
      • Subservice Organization Evaluation
    • 7.5 Physical and environmental threats

      Cloud infrastructure is protected against fire, flood, power loss and other physical or environmental hazards.

      • Physical Protection Policy & Procedure
      • Business Continuity Policy & Procedure
      • Disaster Recovery Policy
    • 7.6 Work in secure areas

      Rules govern work inside secure areas where cloud infrastructure is located.

      • Physical Protection Policy & Procedure
    • 7.7 Clearing desks and screens

      Desks and screens used to administer cloud services are kept free of exposed sensitive information.

      • Clear Desk & Clear Screen
      • Session Lock
    • 7.8 Equipment placement and protection

      Equipment supporting cloud services is placed and protected to reduce physical risk.

      • Physical Protection Policy & Procedure
      • Endpoint Security Policy
    • 7.9 Assets used off-site

      Devices used to administer cloud services away from the office are protected.

      • Endpoint Security Policy
      • Endpoint Encryption
      • Inventory of Endpoint Assets
      • Malware Protection
    • 7.10 Storage media handling

      Storage media holding cloud data are tracked through their life and sanitized before reuse or disposal.

      • Media Disposal Policy
      • Endpoint Encryption
      • Data Classification Policy
    • 7.11 Utility services

      Power and other utilities that cloud infrastructure depends on are protected against failure.

      • Physical Protection Policy & Procedure
      • Subservice Organization Evaluation
    • 7.12 Cabling protection

      Power and data cabling for cloud infrastructure is protected against interception and damage.

      • Physical Protection Policy & Procedure
      • Subservice Organization Evaluation
    • 7.13 Maintaining equipment

      Cloud infrastructure equipment is maintained so that it stays available and secure.

      • Endpoint Security Validation
      • Endpoint Security Policy
    • 7.14 Disposal and reuse of equipment

      Equipment that held cloud data is wiped or destroyed securely before it is disposed of or reused.

      • Media Disposal Policy
  • 8 Technology controls

    • 8.1 Endpoint devices

      Devices used to reach or administer cloud services meet the organization's endpoint security baseline.

      • Endpoint Security Policy
      • Malware Protection
      • Endpoint Security Validation
      • Endpoint Encryption
      • Session Lock
    • 8.2 Privileged access

      Privileged access to cloud management interfaces is kept to a minimum, strongly authenticated and reviewed.

      • Production Database Access Restriction
      • User Privilege Reviews
      • Multi-Factor Authentication
      • Access Control Policy & Procedure
    • 8.3 Restricting access to information

      Access to data held in cloud services is restricted to what each role needs, using the access controls the service offers.

      • Access Control Policy & Procedure
      • Identity Validation
      • Production Database Access Restriction
      • User Access Reviews
    • 8.4 Source code access

      Access to source code and infrastructure-as-code stored in cloud repositories is controlled.

      • Identity Validation
      • User Privilege Reviews
      • Secure System Modification
      • Approval of Changes
    • 8.5 Authentication mechanisms

      Cloud services are reached through strong authentication, with multi-factor authentication for administrators.

      • Multi-Factor Authentication
      • Password Management Guidelines
      • Cloud Console Session Timeout
    • 8.6 Capacity planning

      Cloud resource usage is monitored and planned so services keep up with demand.

      • Capacity & Performance Management
      • Impact Analysis
    • 8.7 Malware protection

      Malware protection covers cloud workloads and the endpoints used to reach them.

      • Malware Protection
    • 8.8 Technical vulnerability management

      Vulnerabilities in cloud workloads and services are found and fixed, with remediation duties split according to the service model.

      • Vulnerability Remediation Process
      • Centralized Flaw Remediation
      • Penetration Testing
      • Vulnerability Management Policy & Procedure
    • 8.9 Secure configuration

      Cloud resources follow secure configuration baselines, and configuration drift is detected and corrected.

      • External System Connections
      • Endpoint Security Validation
      • Endpoint Security Policy
      • Impact Analysis
    • 8.10 Deleting information

      Data held in cloud services is deleted when no longer needed, and the provider confirms deletion of customer data when the service ends.

      • Data Retention Policy
      • Media Disposal Policy
    • 8.11 Masking data

      Sensitive data in cloud services is masked or pseudonymized where the risk calls for it.

      • Test Data Protection
      • Data Classification Policy
      • Encryption Policy & Procedure
    • 8.12 Preventing data leakage

      Measures detect and prevent unauthorized disclosure of data out of cloud services.

      • Data Classification Policy
      • Transmission Confidentiality
      • Endpoint Encryption
      • Encryption of Data at Rest
    • 8.13 Backups

      Backups of cloud data are taken, protected and tested, and the backup duties of customer and provider are clearly divided.

      • Data Backup Policy
      • Data Backups
      • Backup Restoration Testing
    • 8.14 Redundant processing facilities

      Cloud services are deployed with enough redundancy, such as several zones or regions, to meet availability needs.

      • Data Backups
      • Business Continuity Policy & Procedure
      • Disaster Recovery Policy
    • 8.15 Logging activity

      Activity in cloud services is logged, and customers can obtain the logs they need to investigate events.

      • Centralized Security Logging
      • Anomalous Behavior Detection
    • 8.16 Monitoring for anomalies

      Cloud services are monitored for anomalous behavior, and customers have the means to monitor their own use of the service.

      • Anomalous Behavior Detection
      • Centralized Security Logging
      • Capacity & Performance Management
      • Unauthorized Activity Monitoring
    • 8.17 Time synchronization

      Clocks across cloud and on-premises systems are synchronized so log timestamps can be correlated.

      • Clock Synchronization
    • 8.18 Powerful utility programs

      Utility programs that can override cloud system controls are restricted and their use is monitored.

      • User Privilege Reviews
      • Production Database Access Restriction
    • 8.19 Software installation on production systems

      Software installation on cloud workloads is controlled.

      • Approval of Changes
      • Endpoint Security Policy
      • Rules of Behavior
    • 8.20 Network protection

      Virtual and physical networks supporting cloud services are protected and managed under consistent security rules.

      • External System Connections
      • Limit Network Connections
      • Network Security Policy & Procedure
      • Transmission Confidentiality
    • 8.21 Network service security

      The security features and service levels of cloud network services are identified and monitored.

      • External System Connections
      • Network Security Policy & Procedure
      • Network & Data Flow Diagrams
      • Subservice Organization Evaluation
    • 8.22 Network segmentation

      Cloud networks are segmented, for example between tenants, environments and administrative interfaces.

      • Limit Network Connections
      • External System Connections
      • Network Security Policy & Procedure
      • Network & Data Flow Diagrams
    • 8.23 Filtering web access

      Web access from cloud workloads and administrator devices is filtered to reduce exposure to malicious content.

      • Malware Protection
      • Endpoint Security Policy
    • 8.24 Cryptography

      Data in cloud services is encrypted where needed, and it is clear whether the customer or the provider manages each key.

      • Encryption Policy & Procedure
      • Encryption of Data at Rest
      • Transmission Confidentiality
      • Endpoint Encryption
    • 8.25 Secure development process

      Cloud services, and applications built on them, are developed under a secure development process.

      • Change Management Policy & Procedure
      • Secure System Modification
      • Approval of Changes
    • 8.26 Security requirements for applications

      Security requirements for applications hosted in or offered as cloud services are identified and specified.

      • Change Management Policy & Procedure
      • Input Range Validation
      • Mandatory Field Validation
      • Vulnerability Remediation Process
    • 8.27 Secure architecture and engineering

      Cloud architectures are designed on secure engineering principles such as least privilege and defense in depth.

      • Change Management Policy & Procedure
      • Network & Data Flow Diagrams
      • Privacy by Design Policy
    • 8.28 Secure coding practices

      Code deployed to cloud services follows secure coding practices.

      • Change Management Policy & Procedure
      • Approval of Changes
      • Input Range Validation
      • Vulnerability Remediation Process
    • 8.29 Security testing before release

      Cloud applications and infrastructure changes are security tested before release.

      • Approval of Changes
      • Regression Testing
      • Penetration Testing
    • 8.30 Supervising outsourced development

      Outsourced development of cloud services or workloads is supervised and held to the organization's security requirements.

      • Vendor Management Policy & Procedure
      • Third-Party Criticality Assessments
      • Change Management Policy & Procedure
      • Approval of Changes
    • 8.31 Separate development, test and production

      Development, test and production environments in the cloud are kept apart, for example in separate accounts or projects.

      • Test Data Protection
      • Secure System Modification
    • 8.32 Change control

      Changes to cloud services and configurations follow change control, and customers are told about changes that affect them.

      • Change Management Policy & Procedure
      • Secure System Modification
      • Approval of Changes
      • Deployment Notifications
    • 8.33 Test data

      Test data used in cloud environments is chosen and protected so that production personal data is not exposed.

      • Test Data Protection
    • 8.34 Protecting systems during audits

      Audit and testing work in cloud environments is planned so it does not disrupt services or expose other tenants.

      • Internal Audit
      • Penetration Testing
    • 8.35 Isolation in virtualized environments

      Each tenant's virtual resources, data and workloads are isolated from other tenants and from the provider's internal systems.

      • Tenant Isolation
      • Limit Network Connections
      • External System Connections
    • 8.36 Detecting unauthorized cloud use

      Use of cloud services is monitored to detect and stop unauthorized use, such as unapproved services, leaked credentials or abuse of accounts.

      • Anomalous Behavior Detection
      • Centralized Security Logging
      • Third-Party Criticality Assessments
      • Unauthorized Activity Monitoring