The Intercept reveals the NSA program Sentry Eagle, a blanket term for a number of different operations described as NSA core secrets.

The documents show that the NSA "has had agents in China, Germany, and South Korea working on programs that use “physical subversion” to infiltrate and compromise networks and devices." They reveal an"array of clandestine activities in the real world by NSA agents working with their colleagues at the CIA, FBI, and Pentagon," including field activities and supply-chain operations "that focus on modifying equipment in a target’s supply chain." The documents also contain "a fleeting reference to the NSA infiltrating clandestine agents into 'commercial entities,'" which The Intercept speculates could mean "employees—ones who are secretly working for the NSA without anyone else being aware" at American technology companies. The documents also reveal that the NSA has relationships with foreign companies that allow the agency to work with those companies to build backdoors for the NSA to conduct surveillance. Finally, the description sheet for Project Raven solidifies concerns about the NSA"s interference with encryption. It "states the NSA 'works with specific U.S. commercial entities…to modify U.S manufactured encryption systems to make them exploitable...”