The Full Form of SOX is Sarbanes-Oxley.

An Act To protect investors by improving the accuracy and reliability of corporate disclosures made pursuant to the securities laws, and for other purposes.

The Sarbanes–Oxley Act of 2002 (Pub.L. 107–204 (html) (pdf), 116 Stat. 745, enacted July 30, 2002), also known as the “Public Company Accounting Reform and Investor Protection Act” (in the Senate) and “Corporate and Auditing Accountability, Responsibility, and Transparency Act” (in the House) and more commonly called Sarbanes–Oxley, Sarbox or SOX, is a United States federal law that set new or expanded requirements for all U.S. public company boards, management and public accounting firms. A number of provisions of the Act also apply to privately held companies, such as the willful destruction of evidence to impede a federal investigation.

The bill, which contains eleven sections, was enacted as a reaction to a number of major corporate and accounting scandals, including Enron and WorldCom. The sections of the bill cover responsibilities of a public corporation’s board of directors, add criminal penalties for certain misconduct, and require the Securities and Exchange Commission to create regulations to define how public corporations are to comply with the law.