Explanation

* The auditee is the organization or part of it that is subject to the audit. The auditee could be internal or external to the audit client . The auditee should cooperate with the audit team and provide them with access to relevant information, documents, records, personnel, and facilities .
* The audit client is the organization or person that requests an audit. The audit client could be internal or external to the auditee . The audit client should define the audit objectives, scope, criteria, and programme, and appoint the audit team leader .
* The technical expert is a person who provides specific knowledge or expertise relating to the organization, activity, process, product, service, or discipline to be audited. The technical expert could be internal or external to the audit team . The technical expert should support the audit team in collecting and evaluating audit evidence, but should not act as an auditor .
* The observer is a person who accompanies the audit team but does not act as an auditor. The observer could be internal or external to the audit team . The observer should observe the audit activities without interfering or influencing them, unless agreed otherwise by the audit team leader and the auditee .
References :=
* [ISO 19011:2022 Guidelines for auditing management systems]
* [ISO/IEC 17021-1:2022 Conformity assessment - Requirements for bodies providing audit and certification of management systems - Part 1: Requirements]

According to ISO/IEC 17021-1, which specifies the requirements for bodies providing audit and certification of management systems, a certification body should establish criteria for determining audit time and audit team composition based on factors such as the scope of certification, size and complexity of the organization, risks associated with its activities, etc2. Therefore, if an auditee requests to extend the audit scope to include two additional sites after completing Stage 1 of an initial certification audit, the audit team leader should obtain information about the additional sites to inform the certification body, so that they can review and approve the change in scope and adjust the audit time and audit team accordingly2. The other options are not appropriate actions for the audit team leader to take in this situation. For example, increasing the length of the Stage 2 audit to include the extra sites without informing the certification body may violate their procedures and policies; arranging to complete a remote Stage 1 audit of the two sites using a video conferencing platform may not be feasible or effective depending on the nature and location of the sites; and informing the auditee that the request can be accepted but a full Stage 1 audit must be repeated may not be necessary or reasonable if there are no significant changes in the auditee's ISMS since Stage 12. References: ISO/IEC 17021-1:2015 - Conformity assessment - Requirements for bodies providing audit and certification of management systems - Part 1: Requirements

A human threat is a threat that originates from a person or a group of people who intentionally or unintentionally cause harm to an organization's information assets. Examples of human threats include hackers, insiders, terrorists, criminals, competitors, or disgruntled employees. A human threat can exploit technical, physical, or organizational vulnerabilities to compromise the confidentiality, integrity, or availability of information. Phishing is an example of a human threat that uses social engineering techniques to trick users into revealing sensitive information, such as passwords, credit card numbers, or bank account details. Phishing attacks often involve sending fraudulent emails or messages that appear to be from legitimate sources, such as banks, government agencies, or trusted contacts. The messages may contain links to malicious websites or attachments that contain malware. Therefore, the correct answer is C. Reference: ISO/IEC 27000:2022, clause 3.25; What is Phishing? | How to Identify & Avoid Phishing Scams.

According to ISO 27001:2022 Annex A Control 8.30, the organisation shall ensure that externally provided processes, products or services that are relevant to the information security management system are controlled. This includes developing and entering into licensing agreements that cover code ownership and intellectual property rights, and implementing appropriate contractual requirements related to secure design and coding in accordance with Annex A 8.25 and 8.2912 In this case, the organisation and the developer have performed security tests that failed, which indicates that the secure design and coding requirements of Annex A 8.29 were not met. The IT Manager explains that the encryption and pseudonymization functions failed because they slowed down the system and service performance, and that an extra 150% of resources are needed to cover this. However, this does not justify the acceptance of the test results by the Service Manager, who is not authorised to approve the test according to the software security management procedure. The Service Manager should have consulted with the IT Manager, who is the owner of the process, and followed the procedure for handling nonconformities and corrective actions. The Service Manager's decision to continue the service based on access control alone exposes the organisation to the risk of compromising the confidentiality, integrity, and availability of personal data processed by the mobile app. Therefore, there is a nonconformity (NC) with clause 8.1, control A.8.30.
According to ISO 27001:2022 Clause 8.1, the organisation shall plan, implement and control the processes needed to meet information security requirements, and to implement the actions determined in Clause 6.1. The organisation shall also control planned changes and review the consequences of unintended changes, taking action to mitigate any adverse effects, as necessary12 In this case, the organisation has not controlled the planned change of the mobile app from version 1.0 to version 1.01, which was a minor update provided by the outsourced developer in response to frequent ransomware attacks. The IT Manager explains that the developer performed an emergency release of the updated software, and gave a verbal guarantee that there will be no impact on any security functions.
However, this is not sufficient to ensure that the change is properly assessed, tested, documented, and approved before deployment. The IT Manager should have followed the change management process and procedure, and verified that the updated software meets the security requirements and does not introduce any new vulnerabilities or risks. The IT Manager's reliance on his 20 years of information security experience and the developer's verbal guarantee is not a valid basis for skipping the re-testing of the software. Therefore, there is a nonconformity (NC) with clause 8.1.
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

Explanation:
Top management requests auditors from the organisation's compliance department to audit the production process in order to ensure the final product meets quality requirements = First-party audit Auditors from the buyer's organisation audit their raw material supplier to ensure the supply fulfils the order and contract = Second-party audit Auditors from an independent certification body conduct an audit of the organisation to verify conformity with an ISO Standard for certification purposes = Third-party audit The organisation has been audited against two management system standards in one audit = Combined audit Explanation: According to the ISO/IEC 27001 standard, there are three main categories of audits: internal, external, and certification1. An internal audit, also known as a first-party audit, is an audit conducted by the organisation itself, or by an external party on its behalf, for management review and other internal purposes12. An external audit, also known as a second-party audit, is an audit conducted by a customer or other interested party on a supplier or contractor to verify compliance with contractual or other requirements12. A certification audit, also known as a third-party audit, is an audit conducted by an independent certification body to verify conformity with an ISO standard for certification purposes12. A combined audit is an audit where two or more management system standards are audited together3.
References: 1: PECB Candidate Handbook - ISO/IEC 27001 Lead Auditor, page 192: ISO 27001 Audit Types and How They are Conducted23: The Four ISO 27001 Audit Categories, Explained4