Information security should be integrated into project management so that security risks related to projects and deliverables are effectively addressed. Projects often introduce new systems, processes, suppliers, data flows, technologies, applications, facilities, or business changes. If security is considered only after implementation, weaknesses may already be embedded in design, architecture, contracts, code, configurations, or operating procedures. ISO/IEC 27002 Control 5.8 expects information security to be integrated into project management activities so risks are identified and treated throughout the project lifecycle. This includes security requirements, risk assessments, roles and responsibilities, acceptance criteria, testing, supplier requirements, privacy considerations, change control, and secure transition to operation.
Option A is too general and focuses on applying ISO/IEC 27001 principles rather than the precise purpose of the control. Option B is too narrow because audits can support assurance but are not the primary reason for integration. The main purpose is risk management within projects and deliverables. Therefore, option C is verified. References/Chapters: ISO/IEC 27002:2022, Control 5.8 Information security in project management; Control 8.26 Application security requirements; Control 8.29 Security testing in development and acceptance.

The purpose of Control 8.20, Network security, is to protect information in networks and supporting information processing facilities from compromise through the network. This includes protecting data in transit, network devices, network services, communication paths, routing, management interfaces, and connected systems. Network compromise can lead to unauthorized access, interception, malware propagation, denial of service, lateral movement, data exfiltration, or manipulation of traffic. Option B relates more closely to Control 8.21, Security of network services, which addresses security mechanisms, service levels, and management requirements for network services. Option C relates to Control 8.22, Segregation of networks, which specifically concerns splitting networks into security boundaries or domains. Control 8.20 is broader: it establishes the general objective of securing networks against compromise. ISO/IEC 27002 expects organizations to manage and control networks according to risk, including architecture, monitoring, authentication, encryption where needed, device hardening, and protection of network management functions.
The correct answer is therefore option A. References/Chapters: ISO/IEC 27002:2022, Control 8.20 Network security; Control 8.21 Security of network services; Control 8.22 Segregation of networks.

Control 5.11 requires personnel to return all organizational assets in their possession upon change or termination of employment.

Integrating information security into project management helps identify and manage security risks throughout the project lifecycle.

Clear desk and clear screen policies help prevent unauthorized viewing or access to sensitive information left unattended.