Hi! My university is now requiring all students to install an antivirus program in order to connect to campus wifi. The software they are recommending is avast!, and I am in no way inclined to run that on my system. I'm fully aware that macs do not need an antivirus program, and would not be considering installing one if it was not mandatory. That being said, can anyone recommend a program that would not be harmful or disruptive to my system? Thanks!