I noticed that there are two ways that you can encrypt your mac computer. One way is you can go to system preferences, security and privacy and click on the file vault tab to turn on encryption. The other way is by clicking on your desktop, selecting finder to show the hard disk on your desktop. If you right click, or option click on the hard drive you will then see an option to encrypt the hard drive. The second way seems faster, is it any different from the first as far as actual encryption? I know that if you do it by right clicking on the drive you do not get the option to back up the key with Apple. I was told that the second method doesn't truly encrypt the entire computer. Any help in answering this would be much appreciated.