When Enron collapsed into bankruptcy in December 2001, it took its auditor down with it: Arthur Andersen, one of the world’s five largest accounting firms, was convicted of obstruction and effectively ceased to exist — even though the Supreme Court later overturned the conviction.
Wirecard was a member of Germany’s blue-chip DAX index when it admitted in 2020 that €1.9 billion of cash on its books simply did not exist. The company collapsed within days, and its chief operating officer fled and remains a fugitive.
WorldCom inflated its profits by roughly $11 billion by booking ordinary expenses as long-term investments — the largest accounting fraud in U.S. history at the time. Its 2002 collapse helped push Congress to pass the Sarbanes-Oxley Act; CEO Bernard Ebbers was sentenced to 25 years.