Enabling FileVault creates an auto-expanding AES-128 encrypted disk image. Basically, when you set up FileVault, it makes the image, sets up the password as the key for the encryption, and copies all of your Home folder to it. When you log in next, it mounts the image and uses it for your Home directory. Because it's doing all the encryption/decryption on the fly, it may make your computer a bit slower, and less forgiving to forced restarts or power outages. Also, while it is an auto-expanding image, it isn't an auto-collapsing image; meaning that if you stored a 15GB iMovie project there, and then deleted it later, that the image would still be an extra 15GB bigger than it needs to be.Jax Mac said:Hi all,
Can anyone tell me the reliabilty of FileVault (on Panther)? I've been afraid to use it. I had read a long time ago of file corruptions.
Please let me know your thoughts on it.