What can you do with XKEYSCORE?
- How do I find a strong-selector for a known target?
- How do I find a cell of terrorists that has no connection to known strong-selectors?
- Show me all the encrypted word documents from Iran
- Show me all PGP usage in Iran
- Show me all the VPN startups in country X and give me the data so I can decrypt and discover the users
- My target speaks German but is in Pakistan – how can I find him?
- My target uses Google Maps to scope target locations – can I use this information to determine nis email address? What about the web-searches – do any stand out and look suspicious?
- I have Jihadist document that has been passed around through numerous people, who wrote this and where were they?
- Show me all the Microsoft Excel spreadsheets containing MAC addresses coming out of Iraq so I can perform network mapping
- Show me all the exploitable machines in country X
XKEYSCORE
TOP SECRET//COMINT//REL TO USA, AUS, CAN, GBR, NZL//20320108
http://www2.gwu.edu/~nsarchiv/NSAEBB/NSAEBB436/docs/EBB-018.pdf
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Xkeyscore Slidedeck
https://archive.org/stream/743244-xkeyscore-slidedeck/743244-xkeyscore-slidedeck_djvu.txt
XKeyscore
http://en.wikipedia.org/wiki/XKeyscore
XKeyscore or XKEYSCORE (abbreviated as XKS) is a formerly secret computer system first used by the United States National Security Agency for searching and analyzing Internet data it collects worldwide every day. The program has been shared with other spy agencies including Australia’s Defence Signals Directorate, New Zealand’s Government Communications Security Bureau and the German Bundesnachrichtendienst.
The program’s existence was publicly revealed in July 2013 by Edward Snowden in The Sydney Morning Herald and O Globo newspapers, though the codename is mentioned in earlier articles, and like many other codenames can also be seen in job postings, and in the online resumes of employees.
XKeyscore is a complicated system and various authors have different interpretations about its actual capabilities. Edward Snowden and Glenn Greenwald explained XKeyscore as being a system which enables almost unlimited surveillance of anyone anywhere in the world, while NSA said that usage of the system is limited and restricted.
According to The Washington Post and national security reporter Marc Ambinder, XKeyscore is an NSA data-retrieval system which consists of a series of user interfaces, backend databases, servers and software that selects certain types of data and metadata that the NSA has already collected using other methods.
On January 26, 2014, the German broadcaster Norddeutscher Rundfunk asked Edward Snowden in its TV interview: “What could you do if you would use XKeyscore?” and he answered:
According to The Guardian’s Glenn Greenwald, low-level NSA analysts can via systems like XKeyscore “listen to whatever emails they want, whatever telephone calls, browsing histories, Microsoft Word documents. And it’s all done with no need to go to a court, with no need to even get supervisor approval on the part of the analyst.”
He added that the NSA’s databank of collected communications allows its analysts to listen “to the calls or read the emails of everything that the NSA has stored, or look at the browsing histories or Google search terms that you’ve entered, and it also alerts them to any further activity that people connected to that email address or that IP address do in the future”.
(sk)
「TOP SECRET// … //REL TO USA, AUS, CAN, GBR, NZL」というのからわかるように、アメリカが情報を共有できる国は、オーストラリア、カナダ、イギリス、ニュージーランドなのだ。
ドイツや日本の政治家は、監視対象になることはあっても、情報を共有してはもらえない。
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それにしても、XKeyscore のようなシステムのすごいこと。どんなことでも、どんな人でも、間違いなく探し出してしまう。
探し出され、使用中の携帯電話や PC めがけてミサイルが飛んでくるのだから、たまったものではない。
Julian Assange が大使館にいることにしたのは、賢い選択だったのだろう。