Ethical Obligations and Decision Making in Accounting, 4/e 1
Case 2-10 WorldCom
The WorldCom fraud was the largest in U.S. history, surpassing even that of Enron. Beginning
modestly during mid-year 1999 and continuing at an accelerated pace through May 2002, the
company—under the direction of Bernie Ebbers, the CEO; Scott Sullivan, the CFO; David
Myers, the controller; and Buford Yates, the director of accounting—“cooked the books” to the
tune of about $11 billion of misstated earnings. Investors collectively lost $30 billion as a result
of the fraud.
The fraud was accomplished primarily in two ways:
1. Booking “line costs” for interconnectivity with other telecommunications companies as
capital expenditures rather than operating expenses.
2. Inflating revenues with bogus accounting entries from “corporate unallocated revenue
accounts.”
During 2002, Cynthia Cooper, the vice president of internal auditing, responded to a tip about
improper accounting by having her team do an exhaustive hunt for the improperly recorded line
costs that were also known as “prepaid capacity.” That name was designed to mask the true
In an interview with David Katz and Julia Homer for CFO Magazine on February 1, 2008,
Cynthia Cooper was asked about her whistleblower role in the WorldCom fraud. When asked
when she first suspected something was amiss, Cooper said: “It was a process. My feelings
changed from curiosity to discomfort to suspicion based on some of the accounting entries my
team and I had identified, and also on the odd reactions I was getting from some of the finance
executives.”