The Enron scandal involved accounting fraud at the Enron Corporation. Top executives at Enron, including CEO Ken Lay and CFO Andy Fastow, used accounting loopholes, such as special purpose entities, to hide billions in debt from failed deals and projects. This allowed Enron to appear profitable and inflated its stock price. When the fraud was uncovered, Enron stock collapsed and the company declared bankruptcy in 2001. Many employees and shareholders lost their life savings and jobs in the largest corporate bankruptcy in U.S. history at that time. The scandal exposed flaws in auditing practices and a lack of oversight of corporate America.