From the Highlights: "U.S. Customs and Border Protection (CBP) uses Unmanned Aircraft Systems (UAS), a surveillance program, to support its law enforcement mission. Our objective was to determine whether CBP is effectively safeguarding information, such as images and video, collected on and transmitted from the UAS. Our work included examining the UAS IT [information technology] systems security control environment."
Department of Homeland Security, Office of Inspector General, Report No. OIG-18-79
Department of Homeland Security Office of Inspector General: https://www.oig.dhs.gov/