"Disclosure of the PRISM program follows a leak to the Guardian on Wednesday of a top-secret court order compelling telecoms provider Verizon to turn over the telephone records of millions of US customers.
The participation of the internet companies in PRISM will add to the debate, ignited by the Verizon revelation, about the scale of surveillance by the intelligence services. Unlike the collection of those call records, this surveillance can include the content of communications and not just the metadata.
Some of the world's largest internet brands are claimed to be part of the information-sharing program since its introduction in 2007. Microsoft – which is currently running an advertising campaign with the slogan "Your privacy is our priority" – was the first, with collection beginning in December 2007.
It was followed by Yahoo in 2008; Google, Facebook and PalTalk in 2009; YouTube in 2010; Skype and AOL in 2011; and finally Apple, which joined the program in 2012. The program is continuing to expand, with other providers due to come online.
Collectively, the companies cover the vast majority of online email, search, video and communications networks."
http://www.guardian.co.uk/world/2013/jun/06/us-tech-giants-nsa-data
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