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Intelligence Agency
GCHQ
Government Communications Headquarters
Founded
1919
Country
United Kingdom
HQ
Cheltenham, England
On Record
2
UK signals intelligence and cyber operations, operating in close partnership with the NSA under the Five Eyes alliance.
2 confirmed Modern
■ Operations
- Modern · UK, USA, Germany, France, Spain CONFIRMED 2013
Operation TEMPORA
GCHQ tapped transatlantic fibre-optic cables to intercept internet traffic in bulk, sharing raw data with the NSA in the largest known surveillance operation in history.
- Modern · USA, UK, Australia, Canada, New Zealand CONFIRMED 2013
PRISM
NSA mass surveillance program secretly collecting internet communications from major US tech companies, exposed by Edward Snowden in 2013.