I bought a used MacBook Pro through eBay, and now I'm wondering if the previous owner can spy on me through the webcam? I'm not very tech-savvy, but I did change the owner's name to mine on the computer, changed the internet connection to my wireless, changed the password, and even renamed this computer. Have I done enough to safeguard my privacy even if they may still have the serial number? I've heard the green light must go on, but is there a way for them to look at me without the green light? With the news of the PA school "spying" through webcams, this got me a little concerned. Call me paranoid, but I'd rather have a peace of mind knowing. Many thanks for any help you can give.