A new danger to wireless network security has been revealed by a team of US computer researchers. A so-called “wormhole attack” could be used to knock a vulnerable network out of action or defeat a wireless authentication system.



But the same researchers that discovered the threat have also devised a radical scheme designed to counter it, involving tagging packets with GPS information or timestamps.



In a wormhole attack, an intruder would intercept wireless data packets travelling across one part of a network and quickly re-insert them at another physical point on the network.

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