Ars technica

Anirban Banerjee, Michalis Faloutsos, and Laxmi Bhuyan collected more than 100GB of TCP header information from P2P networks back in early 2006 using a specially-doctored client. The goal of the research was a simple one: to determine “how likely is it that a user will run into such a ‘fake user’ and thus run the risk of a lawsuit?” The results are outlined in a recent paper (PDF), “P2P: Is Big Brother Watching You?”