How To: Encrypt files in Mac OS X with the Disk Utility app
The Mac OS's Disc Utility allows for the encryption of files. To open Disc Utility click on the magnifying glass (spot light) up in the top right hand corner, and search for Disc Utility. Click on the first result in the list. Once Disc Utility is open, click on "create a new image" in the top tool bar. A new window will drop down, where you choose what you want to save the new image as. Give it a name, and choose the size you want it to be. Moving down, choose the encryption you want to use ...
