I have a macbook pro with latest OSX, and I was browsing buzzfeed.com when all of a sudden it seemed like someone was steering my cursor around. I tried to turn off the macbook real quick via the apple icon at the top left and when the window prompted to shutdown or cancel the cursor clicked cancel!
I then held the power button on the macbook until it turned off.
What happened? What can I do to prevent this?
There is no antivirus installed and we are behind an Airport Extreme router.
Let me know if you need anything else.