The cookies are being used by the NSA to help identify targets for government hacking and surveillance, according to internal NSA presentation slides provided to the newspaper by former NSA contractor Edward Snowden.
According to the documents, the NSA and its British counterpart, GCHQ, are using the small tracking files or "cookies" that advertising networks place on computers to identify people browsing the Internet. The intelligence agencies have found particular use for a part of a Google-specific tracking mechanism known as the “PREF” cookie.
In addition to tracking Web visits, this cookie allows NSA to single out an individual's communications among the sea of Internet data in order to send out software that can hack that person's computer. The slides say the cookies are used to "enable remote exploitation," although the specific attacks used by the NSA against targets are not addressed in these documents.
The NSA's use of cookies isn't a technique for sifting through vast amounts of information to find suspicious behavior; rather, it lets NSA home in on someone already under suspicion - akin to when soldiers shine laser pointers on a target to identify it for laser-guided bombs.
The NSA declined to comment on the specific tactics outlined in this story, but an NSA spokesman sent the Post a statement: "As we've said before, NSA, within its lawful mission to collect foreign intelligence to protect the United States, uses intelligence tools to understand the intent of foreign adversaries and prevent them from bringing harm to innocent Americans."
Google declined to comment for this article, but chief executive Larry Page joined the leaders of other technology companies earlier this week in calling for an end to bulk collection of user data and for new limits on court-approved surveillance requests.
Source: Washington Post
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