In the event of an Information security incident, system users' roles and responsibilities are to...

The role and responsibility that system users should not observe in the event of an information security incident is D: make the information security incident details known to all employees. This is not a proper role or responsibility for system users, as it could cause unnecessary panic, confusion or speculation among employees who are not involved in the incident response process. It could also compromise the confidentiality and integrity of the incident information, which could be sensitive or confidential in nature. Making the information security incident details known to all employees could also violate the information security policies and procedures of the organization, which may require a certain level of discretion and confidentiality when dealing with incidents. The other roles and responsibilities are correct, as they describe what system users should do in the event of an information security incident, such as reporting the incident to the Servicedesk (A), preserving evidence if necessary (B), and cooperating with investigative personnel if needed ©. These roles and responsibilities help to ensure a quick, effective and orderly response to information security incidents. ISO/IEC 27001:2022 requires the organization to implement procedures for reporting and managing information security incidents (see clause A.16.1). References: CQI & IRCA Certified ISO/IEC 27001:2022 Lead Auditor Training Course, ISO/IEC 27001:2022 Information technology — Security techniques — Information security management systems — Requirements, What is Information Security Incident Management?