Hello, Currently I have a backup drive where both of my partitions are encrypted logical partitions that I made in disk utility. When I plug them into my computer I am prompted to enter a password to unlock them (as I expect). I want to encrypt the data on my MBP (internal) hard drive so I was thinking of enabling FileVault. I have a few questions: 1. A few times I have taken internal hard drives from an old Mac, put them into external hard drive enclosures, and have freely been able to access the data by plugging them in via USB (these Macs did not have FileVault enabled). If FileVault is enabled, would this situation be prevented (say if my MBP was stolen)? If the internal hard drive was placed into an enclosure and someone tried to access it, would it be locked (the same way my backup drives prompt me for a password when I plug them into my MBP)? This is assuming they do not have my login password or FileVault recovery key. 2. https://www.youtube.com/watch?v=CJ6AZMk2cy0 In this case the user shows how to reset the password using online recovery to regain access to an OS X account (and I assume this also works offline if you use a bootable USB). Though the keychain is reset, a malicious hacker would have access to the files in that user's account. If FileVault is enabled, does it prevent the method demonstrated in this video? Using 10.9.5. Thanks for the help.