This 2005 letter from the internal NSA newsletter SIDToday responds to a previous article with further details about how the agency is dealing with Skype, noting that certain Special Collection Sites may have had access to Skype traffic, even at that point: see the Intercept article NSA Used Porn to “Break Down Detainees” in Iraq — and Other Revelations From 297 Snowden Documents, 1 March 2018.
This 2005 post from the internal NSA newsletter SIDToday assesses the problem that the advent of encrypted VOIP application Skype has posed for the agency, noting that “At this time, SIGINT targets have a method to freely obscure their communications on the global Internet”: see the Intercept article NSA Used Porn to “Break Down Detainees” in Iraq — and Other Revelations From 297 Snowden Documents, 1 March 2018.
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 NSA presentation from 19 June 2009 explains the metadata capabilities of XKeyScore: see the Intercept article XKEYSCORE: NSA’s Google for the World’s Private Communications, 1 July 2015.
This CSE presentation from 2011 describes some of the cyber warfare tools at the agency’s disposal: see the article Communication Security Establishment’s cyberwarfare toolbox revealed, 23 March 2015.
This NSA TURBULENCE presentation dated August 2009 explains the APEX method of combining passive with active methods to exfiltrate data from networks attacked: see the Der Spiegel article The Digital Arms Race: NSA Preps America for Future Battle, 17 January 2015.
This undated GCHQ document provides a classification guide for BULLRUN – NSA and GCHQ’s attempts to weaken or defeat cryptographic protocols – and specifies some of its achievements: see the ProPublica article Revealed: The NSA’s Secret Campaign to Crack, Undermine Internet Security, 5 September 2013.
This NSA document from August 2012 provides guidance for analysts on ordering the PRISM collection of Skype communications, capabilities that were added over the course of 2011: see the Der Spiegel story Prying Eyes: Inside the NSA’s War on Internet Security, 28 December 2014.
The Guardian has today printed a new interview with Edward Snowden, conducted by Ewan MacAskill and Alan Rusbridger last week in Moscow. Two video clips from this interview have already been published; one in which Edward Snowden discussed the UK’s new surveillance law and a longer fifteen minute excerpt which touches on many of the issues in the full article.