Snowden leaks: Google 'outraged' at alleged NSA hacking
Date published: 31st October 2013
The NSA's director said it had not had access to the companies' computers.
Gen Keith Alexander told Bloomberg TV: "We are not authorised to go into a US company's servers and take data."
But correspondents say this is not a direct denial of the latest claims.
The revelations stem from documents leaked by ex-US intelligence contractor Edward Snowden, who has been granted temporary asylum in Russia and is wanted in the US in connection with the unauthorised disclosures.
The documents say millions of records were gleaned daily from the internet giants' internal networks.
They suggest that the NSA intercepted the data at some point as it flowed through fibre-optic cables and other network equipment connecting the companies' data centres, rather than targeting the servers themselves.
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