This NSA presentation from 24 June 2009 explains how to use the email search functionality within 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 page from GCHQ’s internal GCWIki, last modified on 25 June 2012, enumerates open-source data sets that are available in various agency databases: see the Intercept article Western Spy Agencies Secretly Rely on Hackers for Intel and Expertise, 4 February 2015.
This NSA presentation from 2011 gives an overview of anonymising technologies, including Tor: see the Der Spiegel story Prying Eyes: Inside the NSA’s War on Internet Security, 28 December 2014.
This NSA Point Paper dated 22 February 2006 provides a history of the CRISSCROSS and PROTON information sharing systems that preceded ICREACH: see the Intercept article The Surveillance Engine: How the NSA Built Its Own Secret Google, 25 August 2014.
This ODNI briefing from 15 May 2007 describes the rationale for ICREACH and the scale of metadata sharing that was envisioned: see the Intercept article The Surveillance Engine: How the NSA Built Its Own Secret Google, 25 August 2014.
This article, dated 22 May 2006 and taken from the internal NSA newsletter Foreign Affairs Digest, describes a meeting between agency personnel and officers from Germany’s BND: see the Der Spiegel article New NSA Revelations: Inside Snowden’s Germany File, 18 June 2014.
This presentation, prepared for the Pacific SIGDEV Conference in March 2011 describes the organisation, operations and modernisation of the NSA’s Special Collection Service division, which works out of US embassies and consultates across the world, in tandem with the CI
see the Der Spiegel article The NSA in Germany: Snowden’s Documents Available for Download, 18 June 2014.
This page from GCHQ’s internal GCWiki, last edited in May 2012, provides background information on the agency’s “internet buffer business capability”: see the Der Spiegel article The NSA in Germany: Snowden’s Documents Available for Download, 18 June 2014.
These redacted extracts from a spreadsheet titled “FISA Recap” show how five Muslim-Americans – Faisal Gill, Asim Ghafoor, Agha Saeed, Nihad Awad and Hooshang Amirahmadi – were included in this list of email addresses monitored between 2002 and 2008: see the Intercept article Meet the Muslim-American Leaders the FBI and NSA Have Been Spying On, 9 July 2014.