The study aimed at measuring the impact of cloud accounting application on the quality of performance of Egyptian companies as well as the relationship between cloud accounting application and the risks to accounting information systems and the extent to which auditors disclose them in their reports on these companies.  The study found a relationship between cloud accounting application, reduced operating costs and the conversion of most capital expenditures into operational, as well as the quality of a strong relationship between cloud accounting application and the quality of the company's performance, as well as a strong relationship between cloud accounting application and the causes and types of electronic risks. The study also found that there are large and costly security breaches for Egyptian companies that apply the cloud, but most of these companies do not disclose these breaches in their financial reports, as well as the failure of the auditors to disclose them in their reports about these companies.   The study recommends that Egyptian companies should be interested in the security of information and disclose it in their financial reports as well as the disclosure of auditors in their reports about these companies.