Explanation:
* Review is the third stage of the Plan-Do-Check-Act (PDCA) cycle, which is a four-step model for implementing and improving an information security management system (ISMS) according to ISO/IEC
27001:202212. Review involves assessing and measuring the performance of the ISMS against the established policies, objectives, and criteria12.
* Assess is the verb that describes the action of reviewing the ISMS. Assess means to evaluate, analyze, or measure something in a systematic and objective manner3. Assessing the ISMS involves collecting and verifying audit evidence, identifying strengths and weaknesses, and determining the degree of conformity or nonconformity12.
* Regular is the adjective that describes the frequency or interval of reviewing the ISMS. Regular means occurring or done at fixed or uniform intervals4. Reviewing the ISMS at regular intervals means conducting internal audits and management reviews periodically, such as annually, quarterly, or monthly, depending on the needs and risks of the organization12.
* Suitability is one of the attributes that describes the quality or outcome of reviewing the ISMS. Suitability means being appropriate or fitting for a particular purpose, person, or situation5. Reviewing the ISMS for suitability means ensuring that it is aligned with the organization's strategic direction, business objectives, and information security requirements12.
References :=
* ISO/IEC 27001:2022 Information technology - Security techniques - Information security management systems - Requirements
* ISO/IEC 27003:2022 Information technology - Security techniques - Information security management systems - Guidance
* Assess | Definition of Assess by Merriam-Webster
* Regular | Definition of Regular by Merriam-Webster
* Suitability | Definition of Suitability by Merriam-Webster

The reliability aspect of information that is in danger when a member of staff denies sending a particular message is integrity. Integrity implies that information is authentic and can be verified as such. If a member of staff denies sending a message, it means that either the message was forged or the sender is lying, both of which violate the integrity of the information. Availability, correctness and confidentiality are not directly affected by this scenario. ISO/IEC 27001:2022 defines integrity as "property of accuracy and completeness" (see clause 3.24). Reference: [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 Integrity?

Explanation
The three options for findings that are justified in the scenario are:
*Nonconformity (NC) - The information for the acceptance of residual information security risks should be updated after the risk treatment is implemented. Clause 6.1.3.f
*Nonconformity (NC) - The IT security manager should be aware of and understand his authority and area of responsibility. Clause 7.3
*Nonconformity (NC) - The risk treatment plan No. 123 should be approved by the risk owner, the Facility Manager in this case. Clause 6.1.3.f According to ISO/IEC 27001:2022, clause 6.1.3.f, the organisation must retain documented information that includes the information for the acceptance of residual information security risks, and the approval of the risk treatment plan by the risk owner1. Therefore, option A and G are justified as nonconformities, because the organisation failed to update the information for the acceptance of residual risks, and the risk treatment plan was approved by the IT security manager, who is not the risk owner.
According to ISO/IEC 27001:2022, clause 7.3, the organisation must ensure that the persons assigned to perform the roles and responsibilities for the ISMS are competent, and are aware of the consequences of not conforming to the ISMS requirements2. Therefore, option E is justified as a nonconformity, because the IT security manager, who is responsible for the information security risk management process, was not aware of his authority and area of responsibility.
The other options are not justified as findings, because they are either irrelevant or incorrect. For example:
*Option B is irrelevant, because it is not related to the information security risk treatment plan No. 123, which is the focus of the audit.
*Option C is incorrect, because it is not an opportunity for improvement, but rather a benefit of the risk treatment plan No. 123, which is already implemented.
*Option D is incorrect, because it is not a nonconformity, but rather a requirement for the organisation to provide the resources needed for the ISMS, which is not the same as the resources needed for the risk treatment plan No. 123.
*Option F is incorrect, because it is not a nonconformity, but rather a requirement for the organisation to provide the resources needed for the continual improvement of the ISMS, which is not the same as the resources needed for the risk treatment plan No. 123.
*Option H is irrelevant, because it is not a finding, but rather a good practice, which is not the objective of the audit.
References: 1: ISO/IEC 27001:2022, 6.1.3.f; 2: ISO/IEC 27001:2022, 7.3; : ISO/IEC 27001:2022; : ISO/IEC
27001:2022

Explanation
Changes to the information processing facilities shall be done in a controlled manner, according to clause
12.1.2 of ISO/IEC 27001:2022. This is to ensure that the security of information and systems is not compromised by the changes, and that the changes are authorized, documented, tested, and approved before implementation. References: : CQI & IRCA ISO 27001:2022 Lead Auditor Course Handbook, page 63. :
ISO/IEC 27001:2022, clause 12.1.2.

Explanation
Social engineering is a technique that involves creating a situation wherein a third party gains confidential information from you by manipulating your trust or exploiting your weaknesses. Social engineering can take various forms, such as phishing emails, phone calls, impersonation, or baiting. Social engineering is a common threat to information security, as it targets the human factor rather than the technical defenses. References: :
CQI & IRCA ISO 27001:2022 Lead Auditor Course Handbook, page 26. : ISO/IEC 27001 LEAD AUDITOR
- PECB, page 13.