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Thursday, May 31, 2007

 

File-sharing sites are being subverted for web attacks

‘Peer-to-peer (P2P) file-sharing networks, which let users trade movies, music and software online, are increasingly being used to trick PCs into attacking other machines, experts say.

Computer scientists have previously shown how P2P networks can be subverted so that several connected PCs gang up to attack a single machine, flooding it with enough traffic to make it crash. This can work even if the target is not part of the P2P network itself.

Now, security experts are warning that P2P networks are increasingly being used to do just this. “Until January of this year we had never seen a peer-to-peer network subverted and used for an attack,” says Darren Rennick of internet security company Prolexic in an advisory released recently. “We now see them constantly being subverted.”‘




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