In 2002, WorldCom internal auditors Eugene Morse and Cynthia Cooper used the company's AIS to uncover $4 billion in fraudulent expense allocations and other accounting entries. Their investigation led to the termination of CFO Scott Sullivan as well as new legislation. (section 404 of the Sarbanes-Oxley Act, which regulates companies' internal financial controls and procedures. (Does a job as a financial sleuth sound interesting to you? Learn more in Uncovering A Career In Forensic Accounting.)