Cynthia Cooper is a prominent American businesswoman and author, best known for her role as the first female internal auditor at WorldCom. She gained international recognition for her courageous whistleblowing in 2002, which exposed one of the largest accounting frauds in U.S. history. Her actions led to significant changes in corporate governance and accounting practices. In addition to her work at WorldCom, Cooper has served as a consultant and speaker on ethics and corporate responsibility. She has authored several books, including "Extraordinary Circumstances," which details her experiences during the scandal. Cooper's contributions have made her a respected figure in the fields of business ethics and corporate accountability.