Hello. This is my first post, so please let me know if this isn't the correct location for my question. Well, I did something stupid the other day. I was at Borders in the cafe and was trying to find a free WiFi signal so I wouldn't have to pay TMobile. I saw one called 'Free Public WiFi' and I guess my sensible side was taking a bathroom break or something because I clicked on it right away. I connected to it and realized it was listed under Computer-To-Computer networks. My sensible side came running back and I quickly disconnected and turned my AirPort off. Is there a way to check to see if my computer has been compromised? I'm fairly new to Macs so I'm not sure if there's a SOP that I can follow to help see if my Macbook is OK. Thanks in advance.