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Chinese hacking of US defence systems 'a major breach'

29 May 2013 Last updated at 05:11 BST

Chinese hackers have accessed designs for more than two dozen US weapons systems, a US newspaper has reported.

Designs for combat aircraft, ships and missile defences were among those compromised, a Pentagon paper found, the Washington Post reported.

Steve Durbin from the Information Security Forum told BBC News that the breach was "a major breach and a major concern".