In our statistical analysis, we find that disclosing a material weakness is positively associated with business complexity, measured by the number of reported operating segments and the existence of a foreign currency translation. Disclosing a material weakness is negatively associated with firm size and firm profitability. Finally, after controlling for complexity, size, and profitability, we find that being audited by a large audit firm is positively associated with the reporting of a material weakness. Perhaps, since large audit firms are exposed to a greater legal liability, they might be more diligent about searching for, and reporting, material weaknesses in our sample period.