Mods: I wasn't sure which forum to put this in, but this seemed like the most appropriate one. Feel free to move it. Hi, My brother has alluded on several occasions that he knows what I sites I visit (he has made references to specific ones). I don't do anything particularly culpable, but naturally I find this very unnerving. He is also on a Mac, and has administrative access to the router. The router is a Netgear DGN2000 and he also has an Airport Extreme Base Station set up. Is it possible that he is able to monitor my internet activity? How can I tell if he is? And can I prevent him from doing so? Thanks.