The document evaluates the impact of the Public Company Accounting Oversight Board (PCAOB) established under the Sarbanes-Oxley Act (SOX) of 2002, highlighting its role in improving the reliability of audited financial statements and corporate governance. It discusses the regulatory changes brought by SOX, including enhanced responsibilities for corporate officers and auditors, and the necessity for effective internal controls to reduce potential fraud. Lastly, the document assesses challenges surrounding compliance costs and the need for additional regulations to adapt to evolving auditing needs amidst technological advancements.