Kernel of Truth

ISO 27001 Controls Breakdown

ISO/IEC 27001 is the international standard for establishing, implementing, maintaining, and continually improving an Information Security Management System (ISMS).

The latest revision (ISO 27001:2022) includes 93 controls, grouped into 4 themes:


🏛 1. Organisational Controls (37 controls)

Focus on governance, policies, roles, risk management, and operational structure.

Examples:

  • A.5.1 – Policies for Information Security
  • A.5.17 – Information Security in Project Management
  • A.5.23 – Information Security for Use of Cloud Services
  • A.5.30 – Suppliers and Third-Party Relationships

🛠 2. People Controls (8 controls)

Related to employee awareness, responsibilities, screening, and disciplinary actions.

Examples:

  • A.6.1 – Responsibilities for Information Security
  • A.6.2 – Information Security Awareness, Education and Training
  • A.6.3 – Disciplinary Process

🖥 3. Physical Controls (14 controls)

Concerned with physical access, environmental security, equipment, and secure disposal.

Examples:

  • A.7.1 – Physical Security Perimeter
  • A.7.4 – Secure Disposal or Reuse of Equipment
  • A.7.7 – Protection from Physical and Environmental Threats

🔐 4. Technological Controls (34 controls)

Controls around system access, network security, encryption, backups, monitoring, and endpoint protection.

Examples:

  • A.8.1 – User Endpoint Devices
  • A.8.10 – Authentication Information
  • A.8.15 – Logging and Monitoring
  • A.8.28 – Secure Coding

🧭 Mapping ISO 27001 Controls to Risk Management

Each control supports:

  • Risk mitigation (e.g. limiting access to data)
  • Incident response (e.g. monitoring and logging)
  • Security governance (e.g. assigning roles and policies)

Controls should be selected based on a Statement of Applicability (SoA) and tailored to an organisation’s context.


✅ Summary Table

ThemeControl CountExample Focus
Organisational37Governance, roles, supplier risk
People8Awareness, HR screening
Physical14Access control, secure disposal
Technological34Authentication, monitoring, encryption

🔐 ISO 27001 isn’t just about controls—it’s about building trust through secure practices.