Corporate Security

Whistleblower Programmes That Actually Work: Lessons from the Field

Timmy van der Mescht March 29, 2026 1 min read

The ACFE consistently reports that tips are the leading method of initial fraud detection — far ahead of internal audit, management review, or external audit. Most of those tips come through formal or informal whistleblowing channels. Yet in my experience, most corporate whistleblower programmes are profoundly dysfunctional.

Why Most Programmes Fail

What a Functioning Programme Looks Like

Genuine anonymity (including from IT), an external reporting option independent of management, clear and documented investigation procedures, meaningful protections against retaliation, and regular communication to the organisation about the existence and use of the programme.

I help organisations design and implement whistleblowing programmes that employees actually trust — and that generate intelligence that can be acted on. The difference between a box-ticking exercise and a functioning programme is significant. So is the difference in fraud losses.

T

Timmy van der Mescht, CFE

Certified Fraud Examiner • PSIRA-registered Private Investigator • 22+ years law enforcement and private-sector investigation experience.

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