Explanation
According to ISO 19011:2018, which provides guidelines for auditing management systems, clause 6.7 requires the audit team leader to conduct a follow-up audit to verify the implementation and effectiveness of the corrective actions taken by the auditee in response to the nonconformities identified during a previous audit1. The follow-up audit should be conducted in accordance with the same principles and processes as the initial audit, and should result in a conclusion on the status of the nonconformities and any remaining issues1.
Therefore, when conducting a follow-up audit, an ISMS auditor should consider the following actions:
* Recommend that the outstanding minor nonconformity is dealt with at the next surveillance audit: This action is appropriate because it reflects the fact that the auditee has cleared most of the nonconformities, including the major one, and only one minor nonconformity remains outstanding. A minor nonconformity is defined as a failure to achieve one or more requirements of ISO/IEC 27001:2022 or a situation which raises significant doubt about the ability of an ISMS process to achieve its intended output, but does not affect its overall effectiveness or conformity2. Therefore, this finding does not prevent or preclude the continuation of certification, as long as it is addressed by appropriate corrective actions within a reasonable time frame. The auditor should recommend that the outstanding minor nonconformity is dealt with at the next surveillance audit, which is a regular audit conducted by the certification body to confirm the ongoing conformity and effectiveness of an ISMS3.
* Agree with the auditee/audit client how the remaining nonconformity will be cleared, by when, and how its clearance will be verified: This action is appropriate because it reflects the fact that the auditee has demonstrated commitment and capability to implement corrective actions for the nonconformities identified during the previous audit. The auditor should agree with the auditee/audit client on a realistic, achievable, and effective corrective action plan for the remaining nonconformity, including a clear deadline and verification method. The auditor should also document this agreement in the follow-up audit report1.
* Advise the individual managing the audit programme of any decision taken regarding the outstanding
* nonconformity: This action is appropriate because it reflects the fact that the auditor has followed a systematic and consistent approach to conducting and reporting the follow-up audit. The auditor should advise the individual managing the audit programme of any decision taken regarding the outstanding nonconformity, such as recommending its closure at the next surveillance audit or agreeing on a corrective action plan with the auditee/audit client. The auditor should also provide sufficient information and evidence to support their decision1.
* Close the follow-up audit as the organisation has demonstrated it is committed to clearing the nonconformities raised: This action is appropriate because it reflects the fact that the organisation has achieved satisfactory results in the follow-up audit. The auditor should close the follow-up audit as the organisation has demonstrated it is committed to clearing the nonconformities raised by implementing effective corrective actions for most of them and agreeing on a plan for the remaining one. The auditor should also communicate the follow-up audit conclusion to the auditee/audit client and other relevant parties1.

The options B, D, and G are not valid audit trails because they are not directly related to the ISMS requirements or the audit criteria. They are more relevant to the human resource management or the contractual arrangements of the organization, which are outside the scope of the ISMS audit. The other options are valid audit trails because they can provide evidence of how the organization implements and maintains the ISMS controls related to access control, secure areas, and information security aspects of business continuity management. References:
PECB Candidate Handbook ISO/IEC 27001 Lead Auditor, page 16, section 4.2.1 ISO/IEC 27001:2013, clauses A.5.3, A.5.15, A.5.35, A.6.1, A.6.2, A.6.5, A.8.4, A.17.1 ISO 19011:2018, clause 6.2.2

The mail sent by the CEO giving his views on the status of the company and the company's future strategy and the CEO's vision and the employee's part in it should be classified as internal mail. Internal mail is a type of classification that indicates that the information is intended for internal use only, and should not be disclosed to external parties without authorization. The mail sent by the CEO contains information that is relevant and important for the employees of the company, but may not be suitable for public disclosure, as it may contain sensitive or confidential information about the company's performance, goals, or plans. Reference: : CQI & IRCA ISO 27001:2022 Lead Auditor Course Handbook, page 34. : CQI & IRCA ISO 27001:2022 Lead Auditor Course Handbook, page 37. : [ISO/IEC 27001 LEAD AUDITOR - PECB], page 14.

Explanation
According to ISO 27001:2022 clause 8.1.4, the organisation shall ensure that externally provided processes, products or services that are relevant to the information security management system are controlled. This includes implementing appropriate contractual requirements related to information security with external providers, such as customers who send ICT equipment for reclamation12 In this case, the organisation offers ICT reclamation services, which involves processing customer ICT equipment that may contain sensitive or confidential information. The organisation should have a process in place to ensure that the customer ICT equipment is handled securely and in accordance with the customer's information security requirements. The process should include steps such as verifying the customer's identity and authorisation, checking the inventory and condition of the equipment, removing or destroying any labels or stickers that contain information about the equipment or the customer, wiping or erasing any data stored on the equipment, and documenting the actions taken and the results achieved12 The fact that the auditor noticed two servers on a bench with stickers that reveal the server's name, IP address and admin password indicates that the process for dealing with incoming shipments relating to customer IT security is not effective or not followed. This could pose a risk of unauthorised access, disclosure, or modification of the customer's information or systems. Therefore, the auditor should note the audit finding and check the process for dealing with incoming shipments relating to customer IT security, and determine whether there is a nonconformity with clause 8.1.4 of ISO 27001:202212 The other actions are not appropriate for the following reasons:
* A. Asking the ICT Manager to record an information security incident and initiate the information security incident management process is not appropriate because this is not an information security incident that affects the organisation's own information or systems. An information security incident is defined as a single or a series of unwanted or unexpected information security events that have a significant probability of compromising business operations and threatening information security12 In this case, the information security event affects the customer's information or systems, not the organisation's. Therefore, the organisation should follow the process for dealing with incoming shipments relating to customer IT security, not the process for information security incident management.
* C. Recording what the auditor has seen in the audit findings, but taking no further action is not appropriate because this would not address the root cause or the impact of the issue. The auditor has a responsibility to verify the effectiveness and compliance of the organisation's information security management system, and to report any nonconformities or opportunities for improvement12 Therefore, the auditor should check the process for dealing with incoming shipments relating to customer IT security, and determine whether there is a nonconformity with clause 8.1.4 of ISO 27001:2022.
* D. Raising a nonconformity against control 5.31 Legal, statutory, regulatory and contractual requirements is not appropriate because this control is not relevant to the issue. Control 5.31 requires the organisation to identify and comply with the legal, statutory, regulatory and contractual requirements that are applicable to the information security management system12 In this case, the issue is not about the organisation's compliance with the legal, statutory, regulatory and contractual requirements, but about the organisation's control of the externally provided processes, products or services that are relevant to the information security management system. Therefore, the auditor should check the process for dealing with incoming shipments relating to customer IT security, and determine whether there is a nonconformity with clause 8.1.4 of ISO 27001:2022.
* E. Raising a nonconformity against control 8.20 'network security' (networks and network devices shall be secured, managed and controlled to protect information in systems and applications) is not appropriate because this control is not relevant to the issue. Control 8.20 requires the organisation to secure, manage and control its own networks and network devices to protect the information in its systems and applications12 In this case, the issue is not about the organisation's network security, but about the organisation's control of the externally provided processes, products or services that are relevant to the information security management system. Therefore, the auditor should check the process for dealing with incoming shipments relating to customer IT security, and determine whether there is a nonconformity with clause 8.1.4 of ISO 27001:2022.
* F. Asking the auditee to remove the labels, then carry on with the audit is not appropriate because this would not address the root cause or the impact of the issue. The auditor should not interfere with the auditee's operations or suggest corrective actions during the audit, as this would compromise the auditor's objectivity and impartiality12 The auditor should check the process for dealing with incoming
* shipments relating to customer IT security, and determine whether there is a nonconformity with clause
8.1.4 of ISO 27001:2022.
References:
1: ISO/IEC 27001:2022 Lead Auditor (Information Security Management Systems) Course by CQI and IRCA Certified Training 1 2: ISO/IEC 27001 Lead Auditor Training Course by PECB 2

The best practice in acceptable use of information assets is A: access to information and communication systems are provided for business purpose only. This means that the organization grants access to its information and communication systems only to authorized users who need to use them for legitimate and approved business activities. The organization does not allow or tolerate any unauthorized, inappropriate or personal use of its information and communication systems, as this could compromise information security, violate policies or laws, or cause damage or harm to the organization or its stakeholders. The other options are not best practices in acceptable use of information assets, as they could violate information security policies and procedures, as well as ethical or legal standards. Interfering with or denying service to any user other than the employee's host (B) is a malicious act that could disrupt the availability or performance of the information systems or services of another user or organization. Playing any computer games during office hours is a personal and unprofessional use of the information and communication systems that could distract the employee from their work duties, waste resources and bandwidth, or expose the systems to malware or other risks. Accessing phone or network transmissions, including wireless or wifi transmissions (D) is a potential breach of confidentiality or privacy that could intercept, monitor or modify the information transmitted by another user or organization without their consent or authorization. ISO/IEC 27001:2022 requires the organization to implement rules for acceptable use of assets (see clause A.8.1.3). 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 Acceptable Use?