Independent report

US PRISM: GCHQ's alleged interception of communications

The Intelligence and Security Committee investigated allegations that GCHQ intercepted communications illegally under the US PRISM programme.


Statement on GCHQ’s Alleged Interception of Communications under the US PRISM Programme

This file may not be suitable for users of assistive technology. Request an accessible format.

If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email Please tell us what format you need. It will help us if you say what assistive technology you use.


The Intelligence and Security Committee (ISC) made a statement on GCHQ’s alleged interception of communications under the US PRISM programme.

Published 21 August 2013