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XKeyscore (XKEYSCORE or XKS) is a secret computer system used by the United States National Security Agency (NSA) for searching and analyzing global Internet data, which it collects in real time. The NSA has shared XKeyscore with other intelligence agencies, including the Australian Signals Directorate, Canada's Communications Security Establishment, New Zealand's Government Communications Security Bureau, Britain's Government Communications Headquarters, Japan's Defense Intelligence Headquarters, and Germany's Bundesnachrichtendienst.[1]
In July 2013, Edward Snowden publicly revealed the program's purpose and use by the NSA in The Sydney Morning Herald and O Globo newspapers. The code name was already public knowledge because it was mentioned in earlier articles, and, like many other code names, it appears in job postings and online résumés of employees.[2][3]
On July 3, 2014, German public broadcaster Norddeutscher Rundfunk, a member of ARD, published excerpts of XKeyscore's source code.[4][5]
- ^ Seipel, Hubert (January 26, 2014). "Sweden Interview: Transcript". Norddeutscher Rundfunk. p. 3. Archived from the original on January 28, 2014. Retrieved May 6, 2019.
- ^ Greenwald, Glenn; Ackerman, Spencer (June 27, 2013). "How the NSA Is Still Harvesting Your Online Data – Files Show Vast Scale of Current NSA Metadata Programs, with One Stream Alone Celebrating 'One Trillion Records Processed'". The Guardian. Archived from the original on August 4, 2013. Retrieved August 5, 2013.
{{cite news}}: CS1 maint: multiple names: authors list (link) - ^ Layne, Ken (June 18, 2013). "Job Networking Site LinkedIn Filled With Secret NSA Program Names". Archived from the original on December 8, 2017. Retrieved August 6, 2013.
- ^ "xkeyscorerules100". Panorama. ARD (broadcaster). July 3, 2014. Archived from the original on July 7, 2014. Retrieved July 4, 2014.
- ^ Cite error: The named reference
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