Most of the deficiencies identified by the independent public accounting firm KPMG, LLP were related to access controls, segregation of duties, and configuration management. The deficiencies collectively limited USSS’ ability to ensure that critical financial and operational data were maintained in such a manner as to ensure their confidentiality, integrity, and availability. We recommend that USSS, in coordination with the Department of Homeland Security’s Chief Information Officer and Acting Chief Financial Officer, make improvements to USSS’ financial management systems and associated information.