Up until now, I have used my laptop for personal use and some photo work. NOW I will be using it for my business that works with credit card #'s AND social security numbers. Very sensitive data. What I am basically doing is pulling information from a website database off the site and saving onto the computer. My friend who works in IT security is basically telling me to dump the laptop for a desktop. That even if I store the information off the laptop that because it passes through the machine that the information can be accessed somehow. I have never heard of that but then again I don't deal in IT security. Is that true? My plan was to create a encrypted disc in disc utility and hold all the business files in there. OR save the files on an encrypted external drive and not even store them on the laptop. Honestly I use my laptop in clamshell 98% of the time, so I could just sell my laptop and buy a Mac Pro. If I do keep the laptop whats the best way to secure the data?