Isaca Updated CRISC Exam Questions and Answers by olaf

 The average time to identify critical information security incidents is the best indicator of effective information security incident management, as it measures how quickly the organization can detect and respond to the most severe threats to its information assets. The faster the organization can identify critical incidents, the lower the potential impact and damage they can cause. The average time to identify critical incidents also reflects the efficiency and accuracy of the monitoring and reporting mechanisms, as well as the awareness and training of the staff and stakeholders. The other options are not the best indicators of effective information security incident management, as they do not directly measure the performance or quality of the incident response process. The monthly trend of information security-related incidents may show the frequency or severity of the incidents, but not how well they are managed. The frequency of information security incident response plan testing may show the preparedness or maturity of the organization, but not the actual effectiveness of the plan. The percentage of high-risk security incidents may show the risk exposure or appetite of the organization, but not the risk mitigationor treatment. References = 7 Types of Information Security Incidents and How to Respond; Annex A.16: Information Security Incident Management - ISMS.online; CISM Isaca Exam Questions and Answers - CertLibrary.com

Implementing a data masking process is the best method to mitigate the risk of an unauthorized employee viewing confidential data in a database. Data masking is the process of replacing sensitive data with fictitious but realistic data, such as changing names, addresses, phone numbers, etc. Data masking protects the privacy and confidentiality of the data, while still allowing for testing, analysis, or training purposes. Implementing role-based access control, including sanctions in NDAs, and installing a DLP tool are also useful methods to reduce the risk of data exposure, but they are not as effective as data masking, which prevents the data from being accessed in the first place. References = Risk and Information Systems Control Study Manual, Chapter 3, Section 3.3.1, page 3-21.

 Check totals are IT controls that verify the accuracy and completeness of data by comparing the sum or count of data records or data fields with a predetermined or expected value. Check totals can help detect and prevent errors, omissions, or alterations in data entry, processing, or transmission. Check totals can also help identify and correct data discrepancies or anomalies. Therefore, check totals are the most useful IT controls in mitigating the risk associated with inaccurate data. The other options are not the best answers because they do not directly address the risk of inaccurate data. Encrypted storage of data is an IT control that protects the confidentiality and integrity of data by preventing unauthorized access or modification. However, encryption does not ensure the accuracy or validity of the data itself. Links to source data are IT controls that provide traceability and transparency of data by allowing users to access or view the original data from which the derived or aggregated data is obtained. However, links to source data do not verify or correct the data quality or consistency. Audit trails for updates and deletions are IT controls that record thehistory and changes of data by capturing the date, time, user, and action performed on the data. Audit trails can help monitor and review the data activities and transactions, but they do not prevent or detect the data errors or inaccuracies. References = CRISC Review Manual, pages 164-1651; CRISC Review Questions, Answers & Explanations Manual, page 722