ISO/IEC 27001:2005 Information technology – security techniques – Information security management systems – requirements

Summary

ISO/IEC 27001:2005 is a standard for Information Security Management Systems (ISMS), providing guidelines for implementing, managing, and maintaining IT security. The standard follows a Plan-Do-Check-Act (PDCA) cycle and is structured to help organizations improve IT security, ensure compliance, and manage risks effectively.

Implementing ISO 27001 involves several phases, including defining the ISMS scope, conducting risk assessments, managing risks through a Risk Treatment Plan (RTP), and setting up necessary policies and procedures. The process requires commitment from management, resources allocation, and staff training. Organizations may choose to limit the scope to specific divisions or locations, which can reduce costs and streamline the certification process.

Certification involves a rigorous audit process to verify compliance, and periodic internal audits are necessary to maintain certification. The standard helps organizations benchmark against competitors, ensure IT security quality assurance, and align IT with business goals, while fostering increased security awareness and due diligence across the enterprise.