I am on Macbook Pro with OS X Mavericks 10.9.2. I have a big family and we share the same Wifi. I don’t know their passwords for their computers. They also use Macbook Pro with OS X Mavericks 10.9.2. However I want to spy on them, what the surf on the web or I want to be able access their files wirelessly or remotely. Is there any such way to do so. Please help me.