The method the GCHQ reportedly used was to tap directly into fiber optic cables passing through the UK to collect one image of a Yahoo user using their webcams every five minutes, as part of its Project Tempora, according to .
The GCHQ, the British equivalent of the NSA, has been caught collecting screenshots of millions of Yahoo users from their webcams through a program called "Optic Nerve," according to the latest Edward Snowden leak, published on Thursday.
Messenger is a popular instant messaging client and protocol provided by Yahoo! In addition to instant messaging features similar to those offered by ICQ and AOL Instant Messenger, it also offers some unique features such as: IMVironments (customizing the look of Instant Message windows) and Custom Status Messages.
Messenger is provided free of charge and can be downloaded and used with a generic "Yahoo! Yahoo instant messenger also includes a security feature which allows the user to be "invisible" to whoever they choose.
The PRISM surveillance program, for instance, has been systematically spying on millions of users of Skype, Google, Facebook, You Tube, Microsoft, Yahoo, Apple, and others since 2007.
An NSA document leaked by Edward Snowden last year stated that PRISM relies on “assistance of communications providers in the US” and specifically lists AOL, Apple, Facebook, Google, Microsoft, Pal Talk and Yahoo with the dates on which they “joined” PRISM.
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