XKeyscore – new NSA tool sees “nearly everything” you do online

The XKeyscore software collects the contents and metadata from emails, online chats and Web browsing history for virtually anyone.

A Guardian report has revealed that NSA training materials openly said that the XKeyscore system, which it says formed a significant part of its PRISM surveillance activities disclosed by Edward Snowden last month, collected massive amounts of data, including the contents and the metadata of emails and chats.



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