Signals intelligence, often abbreviated as SIGINT, refers to the collection and analysis of electronic signals and communications. This includes data from various sources such as phone calls, emails, and radio transmissions. The primary goal of SIGINT is to gather information that can help in national security, military operations, and intelligence assessments. SIGINT is typically divided into two main categories: communications intelligence (COMINT) and electronic intelligence (ELINT). COMINT focuses on intercepting and analyzing voice and data communications, while ELINT deals with non-communication signals, such as radar emissions. Together, these components provide valuable insights into the activities and capabilities of potential adversaries.