According to the Standards, internal audit professional development plans must ensure that staff development activities are based primarily on the skills and competencies needed to complete the audit plan. This requirement ensures that the internal audit staff possesses the necessary expertise and capabilities to effectively carry out the planned audit activities.
IIA Standards related to Continuing Professional Development and Staff Proficiency.

When using the maturity model approach for assessing an organization's risk management program, the activity of "monitor and review" is typically examined. The maturity model approach evaluates the development and effectiveness of risk management practices over time, identifying areas for improvement and measuring progress against established benchmarks.
Monitoring and reviewing involve regularly assessing the risk management processes and outcomes to ensure they remain effective and are continuously improved. This includes evaluating the implementation of risk management strategies and making necessary adjustments based on performance and changing conditions.
IIA Practice Guide: Assessing the Adequacy of Risk Management Using ISO 31000 COSO Enterprise Risk Management Framework

Fraud awareness training is considered the most effective option listed for detecting fraud within an organization. Training helps in raising awareness among employees about the signs of fraud, the importance of reporting suspicious activities, and the organization's policies related to fraud prevention. A strong awareness program serves as both a deterrent and a detection mechanism, making employees vigilant and more likely to identify and report fraudulent activities.
Institute of Internal Auditors (IIA) resources on fraud detection and prevention best practices.

Internal auditors are most likely to be asked to sign a non-disclosure agreement as a demonstration of due professional care. This helps ensure the confidentiality of information encountered during audits, maintaining integrity and trustworthiness in their professional conduct.
IIA Code of Ethics and standards on confidentiality and professional conduct.

The board of directors should play a leading role in overseeing the ethical atmosphere of an organization. As the highest governance body, the board has the ultimate responsibility for setting the organization's tone at the top, including its ethical culture and practices. This responsibility includes overseeing senior management to ensure that ethical policies and practices are developed, communicated, and enforced throughout the organization.
IIA guidance on governance and ethical oversight.