Active surveillance programs

Stellar wind

Prism is a clandestine mass electronic surveillance data mining program operated by the United States National Security Agency (NSA) since 2007.

Tempora as exposed by The Guardian newspaper, is a clandestine security electronic surveillance program trialled in 2008, established in 2011 and operated by the British Government Communications Headquarters .

XKeyscore is a formerly secret computer system used by the United States National Security Agency for searching and analyzing Internet data about foreign nationals across the world.

Boundless Informant is a big data analysis and data visualization system used by the United States National Security Agency (NSA) to give NSA managers summaries of NSA’s world wide data collection activities.

Dropmire is surveillance program created by the National Security Agency aimed at surveillance of foreign embassies and diplomatic staff, including those of NATO allies.

Fairview is mass surveillance programme run by the National Security Agency, aimed at collecting phone, internet and e-mail data in bulk from the computers and mobile telephones of foreign countries’ citizens.

Echelon is a name used to describe a signals intelligence (SIGINT) collection and analysis network operated on behalf of the five signatory states (Australia, Canada, New Zealand, the United Kingdom, and the United States).

Turbulence is a United States National Security Agency (NSA) information-technology project started circa 2005.

Stellar Wind  is the code name of a Sensitive compartment Information security compartment for information collected under the President’s Surveillance Program (PSP).

Mainway is a database maintained by the United States’ National Security Agency (NSA) containing metadata for hundreds of billions of telephone calls made through the four largest telephone carriers in the United States: AT&T, SBC, BellSouth (all three now called AT&T), and Verizon.

Main Core is the code name of a database maintained since the 1980s by the federal government of the United States. Main Core contains personal and financial data of millions of U.S. citizens believed to be threats to national security.