Does anyone know of any Mac Based Network monitoring software that can be installed to track network usage of Mac computers on a network? Specifically to look for Torrenting activity? I have come to believe the owner of the company I work for is Torrenting Movies while at work, so I am curious if there is anyway to find out about it? We received an interesting letter from our ISP, which stated they received a request from a Copyright Enforcement Group about illegal files being downloaded through our IP Address. I have admin access to everyone's computer here at the company, and have found no infringing files, and the only person's computer I don't have access to is the Owner, who has a laptop which he takes with him everyday. Is there anything I can install on our network to monitor activity like this and see If he is using any P2P torrenting applications?