This undated presentation from GCHQ’s Information and Communications Technology Research department discusses the agency’s efforts in finding “closed loops” of cheap burner phones, a major focus for the agency in the wake of the 7/7 London bombings: see the Intercept article How London’s 7/7 Bombings Led to “Unprecedented” Surveillance Tactics, 1 March 2018.
This GCSB report from July 2009 describes the move towards “full collection” at the agency’s Waihopai, progress against several named targets and “2nd party sharing” arrangements via XKeyScore: see the New Zealand Herald article The price of the Five Eyes club: Mass spying on friendly nations, 5 March 2015.
These six slides from 2010 GCHQ presentation outline the results of a trial operation to acquire SIM encryption keys: see the Intercept article The Great SIM Heist: How Spies Stole the Keys to the Encryption Castle, 19 February 2015.
This undated GCHQ screenshot, which appears to be from a map viewer called CARBON ROD, shows the international connections that made Belgacom a desirable target for the agnecy: see the Intercept article Operation Socialist: The Inside Story of How British Spies Hacked Belgium’s Largest Telco, 13 December 2014.
This undated screenshot from GCHQ’s internal GCWiki provides details of INCENSER, “a GERONTIC delivery from the NIGELLA access” – in other words, a supply of data arranged by Cable & Wireless from a rival company’s infrastructure: see the Süddeutsche Zeitung article Snowden-Leaks: How Vodafone-Subsidiary Cable & Wireless Aided GCHQ’s Spying Efforts, 25 November 2014.
These July 2009 documents provide a full list of the fibre-optic cables GCHQ had access to at that point, including details of location, bandwidth and corporate partners: see the Süddeutsche Zeitung article Snowden-Leaks: How Vodafone-Subsidiary Cable & Wireless Aided GCHQ’s Spying Efforts, 25 November 2014.
These screenshots from GCHQ’s internal GCWiki describe progress on the MTI (Mastering the Internet) cable access project, also known as Tempora. Prominent within these reports is the close cooperation with corporate partner Cable & Wireless / Vodafone, codenamed GEROTIC: see the Süddeutsche Zeitung article Snowden-Leaks: How Vodafone-Subsidiary Cable & Wireless Aided GCHQ’s Spying Efforts, 25 November 2011.