US Patent 7840663 Desktop security in peer-to-peer networks

A peer-to-peer network is monitored for suspicious activity based on patterns of activity. When a particular pattern of suspicious activity is detected, an action associated with the particular pattern is taken. The activity monitored may include network traffic among peers and data sharing on a peer in the network. The action may be to log information about the suspicious activity and/or to send an alert about the suspicious activity.