ISO 27002:2005
Information technology — Security techniques — Code of practice for information security management
ISO/IEC 27002 part of a growing family of ISO/IEC ISMS standards, the ‘ISO/IEC 27000 series’ is an information security standard published by the International Organization for Standardization (ISO) and the International Electro technical Commission (IEC) as ISO/IEC 17799:2005 and subsequently renumbered ISO/IEC 27002:2005 in July 2007, bringing it into line with the other ISO/IEC 27000-series standards. It is entitled Information technology – Security techniques – Code of practice for information security management. The current standard is a revision of the version first published by ISO/IEC in 2000, which was a word-for-word copy of the British Standard (BS) 7799-1:1999.
ISO/IEC 27002 provides best practice recommendations on information security management for use by those who are responsible for initiating, implementing or maintaining Information Security Management Systems (ISMS). Information security is defined within the standard in the context of the C-I-A triad:
the preservation of confidentiality (ensuring that information is accessible only to those authorised to have access), integrity (safeguarding the accuracy and completeness of information and processing methods) and availability (ensuring that authorised users have access to information and associated assets when required).
Contents
Outline of the Standard
After the introductory sections, the standard contains the following twelve main sections:
1. Risk assessment
2. Security policy – management direction
3. Organization of information security – governance of information security
4. Asset management – inventory and classification of information assets
5. Human resources security – security aspects for employees joining, moving and leaving an organization
6. Physical and environmental security – protection of the computer facilities
7. Communications and operations management – management of technical security controls in systems and networks
8. Access control – restriction of access rights to networks, systems, applications, functions and data
9. Information systems acquisition, development and maintenance – building security into applications
10. Information security incident management – anticipating and responding appropriately to information security breaches
11. Business continuity management – protecting, maintaining and recovering business-critical processes and systems
12. Compliance – ensuring conformance with information security policies, standards, laws and regulations
Within each section, information security controls and their objectives are specified and outlined. The information security controls are generally regarded as best practice means of achieving those objectives. For each of the controls, implementation guidance is provided. Specific controls are not mandated since:
1. Each organization is expected to undertake a structured information security risk assessment process to determine its specific requirements before selecting controls that are appropriate to its particular circumstances. The introduction section outlines a risk assessment process although there are more specific standards covering this area such as ISO/IEC 27005.
2. It is practically impossible to list all conceivable controls in a general purpose standard. Industry-specific implementation guidelines for ISO/IEC 27001 and ’27002 are anticipated to give advice tailored to organizations in the telecomms, financial services, healthcare and other industries.
The control objectives and controls in ISO/IEC 27002:2005 are intended to be implemented to meet the requirements identified by a risk assessment. ISO/IEC 27002:2005 is intended as a common basis and practical guideline for developing organizational security standards and effective security management practices, and to help build confidence in inter-organizational activities.
References:
Wikipedia.org
iso.org
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