Campus IT surveillance is a much more immediate invasion of privacy. It's not just being able to see what websites you visit and when. Many enterprise networkin

Campus IT surveillance is a much more immediate invasion of privacy. It's not just being able to see what websites you visit and when. Many enterprise networking products allow you to stalk a user around campus in real time by which wifi access point she's connected to. For instance, if you use a student ID as a wifi login, that ties your MAC address to your identity. Then the wifi access points report which MACs they've seen, and some (thanks Cisco) let you query historical data by MAC. This has legitimate uses for tracking stolen items but frequently no privacy controls or oversight. Add a little machine learning and you can also identify people's associates with decent accuracy.