Pass the PECB ISO 27001 ISO-IEC-27001-Lead-Auditor Questions and answers with ValidTests

According to ISO/IEC 27001 standards, if the auditee decides to accept the risk instead of implementing corrective actions for a nonconformity, this decision should be justified and documented. Documenting such decisions is essential for maintaining the integrity of the ISMS and for demonstrating that the decision was made based on informed judgment.

Audit evidence should be evaluated against the audit criteria in order to determine audit findings.

Audit evidence is the information obtained by the auditors during the audit process that is used as a basis for forming an audit opinion or conclusion12. Audit evidence could include records, documents, statements, observations, interviews, or test results12.

Audit criteria are the set of policies, procedures, standards, regulations, or requirements that are used as a reference against which audit evidence is compared12. Audit criteria could be derived from internal or external sources, such as ISO standards, industry best practices, or legal obligations12.

Audit findings are the results of a process that evaluates audit evidence and compares it against audit criteria13. Audit findings can show that audit criteria are being met (conformity) or that they are not being met (nonconformity). They can also identify best practices or improvement opportunities13.

References :=

ISO 19011:2022 Guidelines for auditing management systems

ISO/IEC 27001:2022 Information technology — Security techniques — Information security management systems — Requirements

Components of Audit Findings - The Institute of Internal Auditors

The two true statements are B and E. According to ISO 19011:2022, the audit plan describes the arrangements for a set of one or more audits planned for a specific time frame and directed towards a specific purpose1, while the audit programme describes the activities and arrangements for an audit2. The other options are either false or irrelevant. The responsibility for managing the audit programme rests with the audit programme manager, not the audit team leader (A)3. The audit plan can be changed during the conducting of the audit if necessary, with the agreement of the audit client and the auditee ©4. The audit programme and the audit plan are not the same thing, so D and F are incorrect. References: 1: ISO 19011:2022, Guidelines for auditing management systems, Clause 3.8 \n2: ISO 19011:2022, Guidelines for auditing management systems, Clause 3.9 \n3: ISO 19011:2022, Guidelines for auditing management systems, Clause 5.3.1 \n4: ISO 19011:2022, Guidelines for auditing management systems, Clause 6.4.2

Explanation (ISO-aligned)

Vulnerability scanning tools may produce false positives.

ISO/IEC 27002:2022 A.8.8 (Management of technical vulnerabilities) requires vulnerabilities to be evaluated, not blindly accepted.

A vulnerability becomes confirmed only after validation, contextual analysis, or successful exploitation.

Option A is incorrect because scan results require validation.

Option B is incorrect because failure to exploit does not prove absence of vulnerability.

✅ Correct reasoning: risk must be validated before confirmation.

Comprehensive and Detailed In-Depth Explanation:

C. Correct Answer:

Professional skepticism involves challenging evidence, verifying claims, and avoiding assumptions.

The auditors critically assessed the validity of evidence, ensuring claims made by Techvology were backed by concrete proof.

A. Incorrect:

Risk-based auditing prioritizes high-risk areas, but the paragraph focuses on verifying claims and evidence.

B. Incorrect:

Fair presentation ensures accurate reporting of findings, but the paragraph focuses on questioning evidence, not reporting.

Relevant Standard Reference:

ISO 19011:2018 Clause 4 (Principles of Auditing: Professional Skepticism)

This statement encapsulates the relationship between threats, vulnerabilities, and assets within the context of information security. Threats are potential causes of an unwanted incident, which may result in harm to a system or organization. Vulnerabilities are weaknesses that can be exploited by threats to cause harm. Assets are valuable resources to an organization that need protection. Therefore, when threats exploit vulnerabilities, they can damage or destroy assets. References: = The explanation is based on the foundational concepts of information security as outlined in ISO/IEC 27001, which includes understanding the interplay between threats, vulnerabilities, and assets as part of an information security management system (ISMS)

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.

Management review is a crucial component of an ISMS that helps determine opportunities for continual improvement. Through management review, an organization assesses the performance and effectiveness of its ISMS, including reviewing opportunities for improvements and the need for changes to the ISMS, including the security policy and security objectives.

The overall competence of the12:

The audit scope and criteria: The audit scope defines the extent and boundaries of the audit, such as the locations, processes, functions, and time period to be audited. The audit criteria are the set of policies, procedures, standards, or requirements used as a reference against which the audit evidence is compared. The audit scope and criteria determine the complexity and extent of the audit, and thus influence the number and expertise of the auditors needed to cover all the relevant aspects of the audit.

The overall competence of the audit team needed to achieve audit objectives: The audit team should have the appropriate knowledge, skills, and experience to conduct the audit effectively and efficiently, and to provide credible and reliable audit results. The audit team competence should include the following elements12:

Generic competence: The ability to apply the principles and methods of auditing, such as planning, conducting, reporting, and following up the audit, as well as the personal behaviour and attributes of the auditors, such as ethical conduct, fair presentation, professional care, independence, and impartiality.

Discipline and sector-specific competence: The ability to understand and apply the audit criteria and the relevant technical or industry aspects of the audited organization, such as the information security management system (ISMS) requirements, the information security risks and controls, the legal and regulatory obligations, the organizational context and culture, the processes and activities, the products and services, etc.

Audit team leader competence: The ability to manage the audit team and the audit process, such as coordinating the audit activities, communicating with the audit programme manager and the auditee, resolving any audit-related problems, ensuring the quality and consistency of the audit work and the audit report, etc.

The person responsible for managing the audit programme should not consider the following factors when deciding the size and composition of the audit team for a specific audit, as they are either irrelevant or inappropriate for the audit process12:

Customer relationships: The audit team should not be influenced by any personal or professional relationships with the auditee or other interested parties, as this may compromise the objectivity and impartiality of the audit. The audit team should avoid any conflicts of interest or self-interest that may affect the audit results or the audit decisions.

Seniority of the audit team leader: The audit team leader should be selected based on their competence and experience, not on their seniority or rank within the organization or the audit programme. The audit team leader should have the authority and responsibility to manage the audit team and the audit process, regardless of their seniority or position.

The cost of the audit: The cost of the audit should not be the primary factor for determining the size and composition of the audit team, as this may compromise the quality and effectiveness of the audit. The audit team should have sufficient resources and time to conduct the audit in accordance with the audit objectives, scope, and criteria, and to provide accurate and reliable audit results and recommendations.

The duration preferred by the auditee: The duration of the audit should be based on the audit objectives, scope, and criteria, and the availability and cooperation of the auditee, not on the preference or convenience of the auditee. The audit team should have enough time to conduct the audit in a thorough and systematic manner, and to collect and evaluate sufficient and relevant audit evidence.

From Exact Extract:

1. Definition of control types (ISO-aligned understanding)

In information security management:

Preventive controls are designed to prevent an incident from occurring.

Detective controls are designed to identify and detect incidents or anomalies after or as they occur.

Corrective controls are designed to correct issues after detection.

2. Analysis of the controls implemented by Fintive

The scenario explicitly states that Fintive implemented the following controls:

Comprehensive audit logging

Automated alert systems to flag unusual activities

Periodic access reviews

Monitoring system behavior for anomalies

All of these controls are designed to:

Detect unauthorized access

Detect errors

Detect suspicious activities

Enable investigation after detection

This aligns directly with detective controls, not preventive or corrective.

3. ISO/IEC 27002:2022 – Exact control alignment

The controls implemented correspond to Annex A technological and organisational detective controls, including:

A.8.15 – Logging

Logging enables the detection and investigation of security events.

A.8.16 – Monitoring activities

Monitoring is used to detect anomalous behaviour and potential security incidents.

A.5.18 – Access rights (periodic reviews)

Access reviews detect inappropriate or excessive access.

These controls do not prevent the chatbot from malfunctioning, nor do they directly fix it — they detect issues so that action can be taken.

4. Why the other options are incorrect

A. Preventive – IncorrectPreventive controls would include secure coding practices, input validation, sandboxing, or improved testing before release. These were not the controls described.

C. Corrective – IncorrectCorrective controls would involve fixing the chatbot logic, retraining the model, or disabling unsafe features. The scenario explicitly focuses on detection and monitoring, not correction.

Auditor Conclusion

Fintive implemented detective controls to identify unauthorized access, errors, and suspicious activity arising from the chatbot’s behaviour. This is consistent with ISO/IEC 27001:2022 risk treatment and monitoring requirements.