*Microsoft and Yahoo voice alarm over NSA's assault on internet encryption* /Tech companies say they were unaware of top secret programs but warn they present 'substantial potential for abuse'/ # Dominic Rushe <http://www.theguardian.com/profile/dominic-rushe> in New York # The Guardian <http://www.guardian.co.uk/theguardian>, Friday 6 September 2013 Two of the world's biggest technology companies, Microsoft and Yahoo, expressed deep concern on Friday about widespread attempts by the US and UK intelligence services to circumvent the online security systems that protect the privacy of millions of people online. Microsoft said it had "significant concerns" about reports that the National Security Agency and its British counterpart, GCHQ, had succeeded in cracking most of the codes that protect the privacy of internet users. Yahoo said it feared "substantial potential for abuse". Google said it was not aware of any covert attempts to compromise its systems. However, according to a report in the Washington Post on Saturday, the company said that it had accelerated the encryption of information in its data centres in a bid to prevent snooping by the NSA and the intelligence agencies of other governments. [...] Continua qui: http://www.theguardian.com/world/2013/sep/06/yahoo-nsa-gchq-decryption-abuse