Exhibit | Aug. 4, 2021

Computer Development: RISSMAN

RISSMAN was a telemetry processing system, built in the early 1980s featuring custom-designed hardware. As part of NSA's SIGINT mission, telemetry signals were collected by various platforms. Magnetic tape recordings of the intercepted signals were then sent to NSA's National Telemetry Processing Center for processing. These measurements were then sent on computer tape to various analysis centers which identified the function of the various transducers and developed performance estimates. This data was used to formulate defense policy and guide treaty negotiations.