What Is ISO 27001 and 27002?

by Sneha Naskar

ISO 27001 is the international standard for Information Security Management Systems (ISMS). An ISMS is a structured approach that helps organizations establish, implement, maintain, and continually improve their information security practices. The primary goal of ISO 27001 is to ensure the confidentiality, integrity, and availability of information assets while managing associated risks.

What Is ISO 27001 and 27002?

Key components of ISO 27001 include:

  • Risk Management: ISO 27001 is built on a risk-based approach to information security. It emphasizes the identification, assessment, and management of information security risks. Organizations must identify potential threats and vulnerabilities and implement appropriate controls to mitigate them.
  • Continuous Improvement: ISO 27001 promotes a cycle of continuous improvement through a process known as the Plan-Do-Check-Act (PDCA) cycle. This cycle encourages organizations to plan and implement security measures, assess their effectiveness, and make necessary adjustments.
  • Legal and Regulatory Compliance: ISO 27001 helps organizations align with various legal and regulatory requirements related to information security, privacy, and data protection. This is crucial in a world where data protection laws are becoming increasingly stringent.

ISO 27002: Code of Practice for Information Security Controls

ISO 27002 complements ISO 27001 by providing a detailed set of controls and best practices for implementing an effective ISMS. While ISO 27001 outlines the framework for information security management, ISO 27002 offers specific guidance on selecting, implementing, and managing controls to address various information security risks. Here's an overview of the four categories of controls defined in ISO 27002:

  • Organizational Controls: These controls focus on the policies, procedures, and management systems that an organization should have in place to support information security. They include measures for defining roles and responsibilities, creating security policies, conducting risk assessments, and managing security documentation.
  • People Controls: Human factors play a significant role in information security. People controls address the security awareness, education, and training of employees. This includes measures like security training programs, awareness campaigns, and background checks for personnel handling sensitive information.
  • Physical Controls: Physical security is essential to protect information assets. Physical controls encompass measures such as access controls to data centers and server rooms, surveillance systems, secure storage of backup media, and secure disposal of physical media.
  • Technological Controls: These controls focus on the technical aspects of information security. They include measures like access control systems, encryption, network security, malware protection, intrusion detection, and incident response procedures.

In summary, ISO 27001 provides a framework for establishing an Information Security Management System (ISMS), while ISO 27002 offers detailed guidance on implementing controls within that framework. Together, these standards help organizations protect their sensitive information, comply with legal and regulatory requirements, and continually improve their information security practices in an ever-evolving threat landscape.

ISO 27001:2022 Documentation Toolkit