Which organization provides signals intelligence in support of CI activities?

The organization that provides signals intelligence in support of Counterintelligence (CI) activities is the Director of the National Security Agency/Chief of the Central Security Service (DIRNSA/CHCSS). The National Security Agency (NSA) specializes in signals intelligence (SIGINT), which includes the collection, analysis, and dissemination of information derived from intercepted communications and electronic signals. This capability is crucial for supporting various national security and intelligence operations, including counterintelligence efforts aimed at detecting and preventing espionage or other threats to national security.

The NSA plays a key role in providing actionable intelligence that helps protect against adversaries, identify vulnerabilities, and inform strategic decisions regarding national security matters. Through its expertise and technology, the NSA can deliver critical insights that are vital for ensuring the effectiveness of CI activities, making it a primary organization in this area.