What is ISO 27001 and why is it relevant to IT security management?

• A. A data privacy regulation with broad impacts.
• B. An information security management system standard that specifies requirements for establishing, implementing, maintaining, and improving information security.
• C. A software development framework.
• D. A project management methodology.

Answer: (B)

ISO 27001 is an international standard for an information security management system that defines how to establish, implement, monitor, maintain, and continually improve information security within an organization. It uses a risk-based approach, requiring a formal risk assessment to identify threats and vulnerabilities, and a plan to treat those risks through appropriate controls. The standard calls for defining an ISMS scope, policy, objectives, and a governance structure, plus implementing controls (often drawn from the Annex A set) to reduce risk to an acceptable level. It follows the PDCA (Plan-Do-Check-Act) cycle, promoting ongoing improvement and sustained attention to security. Adopting ISO 27001 helps protect confidentiality, integrity, and availability of information, aligns security with business goals, and can provide stakeholders with assurance through potential certification. It isn’t a data privacy regulation, a software development framework, or a project management method; it specifically provides a structured, auditable approach to managing information security.