Fraud tends to happen where opportunity, pressure and weak oversight meet. We review your processes to find those places, design controls that prevent and detect, and set clear reporting and investigation steps.
And you want it not to happen again.
With no independent review.
That open fraud patterns you have not seen.
Internal and external, by process.
Segregation of duties, anomaly analysis and surprise reviews.
A reporting channel and a clear investigation path.
For each process.
In priority order.
From receiving a report to the decision.
And who holds which authority.
Fraud scenarios for each process.
And test the existing ones.
And train people on it.