This GCHQ research paper from 6 November 2009 outlines what kinds of data the agency can extract from internet radio stations and their listenership, grouped by country: see the Intercept article Profiled: From Radio to Porn, British Spies Track Web Users’ Online Identities, 25 September 2015.
This 60-page NSA presentation from 27 August 2009 explains the use of different kinds of metadata tags in XKeyScore: see the Intercept article XKEYSCORE: NSA’s Google for the World’s Private Communications, 1 July 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 joint GCHQ/CSEC presentation provides an overview of “exploring and exploiting leaky mobile apps”: see the Der Spiegel article The Digital Arms Race: NSA Preps America for Future Battle, 17 January 2015.
This Booz Allen Hamilton presentation on the NSA’s Quantum tools describes the different kinds of malware attacks available to workgroups within the agency, the procedure an analyst must follow in order to make use of them and the way the systems themselves work, using a “man-on-the-side” attack from TAO’s FOXACID server. It also describes the respective Quantum capabilities of the NSA and GCHQ. See the Der Spiegel article Inside TAO: Documents Reveal Top NSA Hacking Unit, 29 December 2013.