New answers tagged

-1

Here is the very simple answer on how to disable a previously enabled user's access to a FileVault 2 encrypted drive: In terminal, use: sudo fdesetup remove -user Username You will see thereafter the disabled user in the list of users that are available for enabling in System Preferences->Security & Privacy -> FileVault as verification that the ...


2

If the hard drive is not encrypted, then it's not at all secure! Basically anybody can take the hard disk, put it into an external enclosure and connect it to another Mac to read all files on the disk.


0

Yes, once removed, the data can only feasibly be accessed by someone with your password. However, if the attacker gets your computer while it is still running, then uses a USB attack to either force a login as you or creating a new admin (root) account, without the system turning off or rebooting, then your data is at risk. It's possible, but currently ...


1

Yes. FileVault 2 uses 128 bit AES encryption on all the data on your disk. This is why when you turn on FileVault, you will experience a background task grinding through your entire volume, encrypting the data as it goes. Once complete, only someone with your passphrase will be able to decrypt the data, even if they remove the drive from your Mac.


0

System Preferences > Displays : Uncheck Automatically adjust brightness ..that's what fixed it for me :)


33

There's an OS X feature called authenticated restart that stores the FileVault key in the SMC for the duration of the reboot. Apple acknowledges in the manpage that it does reduce FileVault security for the duration of the restart: On supported hardware, fdesetup allows restart of a FileVault-enabled system without requiring unlock during the subsequent ...


1

The only way to keep your Mac safe while you are away is to power it down. Period. Even then, leaving your Mac unattended may not be a good idea, but at least your data is safe, just in case the Mac got stolen. FV2 does a great job protecting your data, but unless your Mac is powered down, there are potential ways for an attacker to compromise it and get ...


0

Seems like a duplicate of another question, this answer should help you: Guest login got enabled even though FileVault 2 is enabled and Guest login is disabled


1

This is a tough one to answer. I have seen discussions on MacInTouch.com about just this subject. And if you keep up with news online about such tings you will find that opinions vary from "Chicken Little" to, "nah, don't worry about it on a Mac." The truth likely lives somewhere between the two. Generally viruses of all types have a bit of a harder time ...


0

If Disk Utility (booted to Internet Recovery Mode) can't repair the error, there is nothing else than booting to your main volume, backing up everything to an external disk and after rebooting to Recovery Mode deleting the Logical Volume and re-adding a new one. If that fails you have to delete the Logical Volume Group as well. Create a new one - including ...


0

Is the laptop plugged in? If not, it has to be plugged in in order to output to a display while closed



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