Computer Security From the last few years there has been a rapid increase in the crime activities related to peer-to-peer networks. One can define this network as the network in which an individual's computers is linked with multiple computers around the whole world with the help of internet.

All these persons can do the following activities using peer-to peer network.

a. Can access the hard drive of other connected persons and thus find and download file from it.

b. Can share these files even personal ones with those who are willing to access other's file.

c. Some hackers even try to expose the computers to virus and worms. Moreover these persons sometimes specially design worms to distribute in peer-to-peer networks only.