So I have an old macbook air that I have dedicated to bill paying and quickbooks. Passwords are: Firmware, OS/User, and Quickbooks app. For online I use Multifactor Authentication and I have FIND MY MAC for the remote erase option if needed. However, how is Apple supposed to find this computer to erase it unless it just so happens to be turned on, some one figure out the user account password and hop onto a network? Even if it just sits at the log in screen, I don't think it will just hop onto open networks by itself. Also, it seems to me that someone could just go around all of this by opening the MBA up and replacing the hard drive on this model, or at least view the /User folders (although they should be behind a password themselves from what I understand). I'm wondering if the whole remote wipe thing is something that I can't really count on as one of my options. Can anyone verify or straighten me out on this if I'm not seeing things properly?