Senior management is concerned fraudulent activities may take place during large financial transactions.

To reduce the risk of fraud in large financial transactions, the security principle ofintegrity(C) requires the highest attention.Integrity, as perISO/IEC 27001’s CIA triad (Confidentiality, Integrity, Availability), ensures that data is accurate, complete, and unaltered. Fraud often involves manipulating transaction data, so controls like data validation, checksums, or audit trails are critical to maintain integrity and prevent unauthorized changes.

Confidentiality (A):Protects data from unauthorized access, less directly related to fraud prevention.

Availability (B):Ensures system access, not the primary concern for fraud.

Reliability (D):Not a standard CIA triad principle; may relate to system performance but not fraud.