參考答案
I start by preserving evidence and limiting information leakage—securing relevant records, access logs, and documentation in a controlled way. Next, I define the suspected scheme and build a hypothesis: what asset, what method, and who had access. I use data analytics to scan for anomalies—duplicate vendors, split invoices, unusual refunds, manual checks, off-hours transactions, and sequential numbering gaps. Then I trace a targeted sample to source documents, approvals, and proof of delivery or receipt, and I reconcile cash movements to bank activity. I conduct interviews carefully—fact-based, consistent, and documented—often in coordination with legal or HR, depending on the situation. Throughout, I maintain a clear chain of custody and an investigation log. Finally, I quantify impact, identify control failures, recommend remediation, and escalate findings through the appropriate governance channels.