FileVault is the system of encryption of Mac computers whose function is to encrypt all the files in the Home directory, making them accessible only through our user password.
The problem comes because the last update of Lion has a bug that causes this password to be saved in the system registry (not subject to this encryption) allowing access to our files to anyone with physical access to our equipment.
Although many of the personal users of Mac they don’t use the FileVault encryption system, it is used a lot in business environments so, in case of losing the work equipment, they could see their files compromised and anyone with knowledge of this vulnerability it could access all the user’s files.
The problem Affects users who have enabled FileVault encryption on Mac OS X Snow Leopard and earlier, so if you have never activated it, your password remains secure. At the moment Manzana has not commented on the matter but it is more than likely that he will update your operating system to avoid this vulnerability.
