Section: Information System Operations, Maintenance and Support

Explanation/Reference:
Explanation:
Databases provide many layers and types of security, including Access control, Auditing, Authentication, Encryption and Integrity controls. An important procedure when evaluating database security is performing vulnerability assessments against the database. Database administrators or Information security administrators run vulnerability scans on databases to discover misconfiguration of controls within the layers mentioned above along with known vulnerabilities within the database software.

The best recommendation to include in an organization's bring your own device (BYOD) policy to help prevent data leakage is to require multi-factor authentication on BYOD devices. BYOD is a practice that allows employees to use their own personal devices, such as smartphones, tablets, or laptops, to access the organization's network, data, and systems. Data leakage is a risk that involves the unauthorized or accidental disclosure or transfer of sensitive or confidential data from the organization to external parties or devices.
Multi-factor authentication is a security measure that requires users to provide two or more pieces of evidence to verify their identity and access rights, such as passwords, tokens, biometrics, or codes. Multi-factor authentication can help prevent data leakage by reducing the likelihood of unauthorized access to the organization's data and systems throughBYOD devices, especially if they are lost, stolen, or compromised. The other options are not as effective as requiring multi-factor authentication on BYOD devices, because they either do not prevent data leakage directly, or they are reactive rather than proactive measures. References: CISA Review Manual (Digital Version)1, Chapter 5, Section 5.2.3

Section: Governance and Management of IT
Explanation/Reference:

The results of a third-party review provided by the vendor would provide the best evidence that a cloud provider's change management process is effective, because it would be an independent and objective assessment of the vendor's compliance with best practices and standards for managing changes in the cloud environment. A third-party review would also include testing of the vendor's change management controls and procedures, and provide recommendations for improvement if needed.
Minutes from regular change management meetings with the vendor would not provide sufficient evidence, because they would only reflect the vendor's self-reported information and may not capture all the changes that occurred or their impact on the cloud services. Written assurances from the vendor's CEO and CIO would also not provide sufficient evidence, because they would be based on the vendor's own opinion and may not be verified by external sources. A copy of change management policies provided by the vendor would not provide sufficient evidence, because it would only show the vendor's intended approach to change management, but not how it is implemented or monitored in practice.
References:
ISACA Cloud Computing Audit Program, Section 4.5: Change Management
Cloud Computing: Business Benefits With Security, Governance and Assurance Perspectives, Section
4.3: Change Management