The Association of Certified Fraud Examiners found occupational frauds are more likely to be detected by tips (34% of cases) than by internal audits (20%), external audits (12%), internal controls (19%) or police alerts (4%); accidental detection uncovered fraud 25% of the time. In some of the 1,134 cases studied, companies reported more than one initial detection method.
Nearly two out of three tips came from employees, with the remaining third supplied by outside (customers and vendors) or anonymous sources.
Source: 2006 ACFE Report to the Nation on Occupational Fraud & Abuse, The Association of Certified Fraud Examiners, www.acfe.com/fraud/report.asp.