Claims made by The Washington Post that the National Security Agency was tapping into the servers of nine tech companies for details of user activity have been denied by Google and most of the other companies alleged to be involved.

Google cares deeply about the security of our users’ data. We disclose user data to government in accordance with the law, and we review all such requests carefully. From time to time, people allege that we have created a government ‘back door’ into our systems, but Google does not have a ‘back door’ for the government to access private user data.

Similar denial statements have been issued by Apple, Dropbox, Yahoo, Microsoft and Facebook.

The Post published slides from what it said was a Powerpoint presentation detailing the top-secret program, in which it was implied that the companies listed were knowing participants …  expand full story