Apple's trademark for features of the Mac OS X operating system involving encrypting computer data for security purposes

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169
votes
8answers
60k views

I included emoji in my password and now I can't log in to my Account on Yosemite

I wanted to check if it's possible to use emoji in a password for my Account on OS Yosemite. It worked but I didn't realize that the login screen has only native keyboards, so I can't type emoji ...
52
votes
11answers
57k views

How can I figure out what's slowly eating my HD space?

Every few days I get notices on my MacBook that it's running or run out of hard drive space. Curiously, restarting the computer will enable me to recover gigabytes of space (this past time, it was ...
31
votes
4answers
75k views

Why does OS X show a forgot password prompt when trying to boot or wakeup screen?

Something came up today that bugged me a bit, I left my laptop on battery power before going to bed. When starting it up the battery was dead. I plugged it in, and here is what happened: The startup ...
29
votes
1answer
991 views

Where does OS X keep the FileVault password during reboots in an upgrade?

For security concerns, I wonder how it would be possible for an OS X upgrade (e.g. from Mavericks to El Capitan), to reboot my Mac multiple times without asking me for my FileVault 2 password? I ...
29
votes
3answers
65k views

Does FileVault encryption slow read/write access on an SSD?

Never fancied enabling FileVault on previous Macs but now I'm running OS X on an SSD. Is there a noticeable decrease in speed?
20
votes
5answers
13k views

Disable a user's ability to unlock a FileVault 2 volume at startup/login time

I recently performed a clean install of Lion on one of my Macs. The installation process created one administrative user account. After installation, I enabled FileVault for the entire disk. Then, I ...
16
votes
16answers
3k views

Apart from being able to encypt an entire volume, what are the other differences of FileVault 2 over FileVault?

Does FileVault 2 in Lion have any other differences compared to the old version, FileVault in previous releases of the system? Are there any additional benefits to using the new version?
13
votes
3answers
11k views

How would enabling FileVault alter my system and TM performance?

What are the pros and cons, performance-wise, of enabling and using FileVault? Is there any at all, or does it slow a computer down significantly or on the contrary speed it up? Also, what effect will ...
13
votes
9answers
37k views

FileVault Stuck on Pause

I just got a new 13" rMBP with Yosemite installed. I chose to enable FileVault when I set the machine up. Now, several days later, an app called "Reverting from FileVault" shows on the list of apps ...
13
votes
2answers
22k views

With File Vault ON are time machine backups encrypted?

I have been using time machine to back up to a wireless external drive since I got my mac. Today I used filevault to encrypt my hard drive. Will this affect how Time Machine backs up my files? Will ...
13
votes
2answers
5k views

What user behavior is necessary to make Filevault 2 maximally secure?

Situation: Filevault 2 passwords can be stolen Passware has released the Passware Kit Forensic 11.3 which is able to steal the FileVault 2 password from the RAM by performing a DMA Attack via the ...
13
votes
2answers
4k views

What are the implications in speed and battery life while using Filevault 2?

One of the neat new (though understated) features of Lion is Whole Disk Encryption. Before I flick the switch, I'd love to know what the performance impacts (speed and battery impacts) of switching ...
13
votes
2answers
935 views

How can I enable Time Machine encryption on the command line?

Is is possible to enable encryption for a Time Machine target disk with a script or using the command line? Is an encrypted Time Machine disk really just the same as a normal disk, ...
12
votes
2answers
2k views

Will FileVault 2 wear out my SSD faster?

I'm considering using FileVault 2 when I upgrade to Lion. Though my understanding of it is weak, it seems as though it shouldn't really increase the number of reads or writes per disk operation ...
11
votes
2answers
14k views

Can you reinstall OS X on a FileVault 2-encrypted drive?

I've been researching FileVault 2 to make sure that I understand it before I enable it on my Mac. While reading Macworld's Complete guide to FileVault 2 in Lion, I encountered an unexpected caveat ...
11
votes
1answer
6k views

Can FileVault show the login window as 'name and password', not 'list of users'?

Normally, Mac OS X lets you choose to show the login screen as a list of users (you click to enter the password), or two text fields (you enter the username and password): But, I use FileVault 2. ...
11
votes
6answers
8k views

Can I use my fingerprint to login/unlock the screen on a Mac?

I own a mid-2009 MBP with OS X Mavericks installed. I'm a hi-tech enthusiast who wants to use the fingerprint scanning feature made available by many scanners on the market to login into my account ...
10
votes
2answers
11k views

Is File Vault 2 whole disk encryption or whole partition encryption?

Can I use File Vault to encrypt only some of the partitions on my disk (so that I can still have unencrypted and Windows partitions on the same disk), or does File Vault encrypt the whole disk so that ...
10
votes
5answers
846 views

Do I need to decrypt the hard drive before repair?

Today I left my MBP Retina at local authorised Apple service (it's a mid 2012 model, and it's having some gfx issues), and then I got an email telling me that I have to go back there and decrypt my ...
10
votes
3answers
11k views

Change OSX encryption filevault password to match login pass

When I first setup my OSX laptop, my filevault and user login password were the same. At bootup, I only had to login once (with my username and password). I recently changed my OSX password but my ...
10
votes
1answer
578 views

For maximum FileVault2 security, why is hibernation recommended?

Many discussions of FileVault 2 security suggest using: sudo pmset -a destroyfvkeyonstandby 1 hibernatemode 25 Some of those discussion state that FileVault keys are stored in RAM during normal ...
10
votes
1answer
5k views

Does Windows or Linux have any tools for accessing a FileVault2 encrypted drive's contents?

I'm looking to mount (and access files on) my FileVault2 encrypted drive on a non-OS X box, and am wondering if anyone has done this with Windows or Linux.
9
votes
3answers
6k views

How can I verify a Lion FileVault recovery key?

I have a volume that is encrypted with OS X Lion's full-disk FileVault. When I enabled FileVault I was given a recovery key, which I wrote down. I'd like to verify that the recovery key that I wrote ...
9
votes
1answer
3k views

How to prevent storing the WiFi password on the recovery partition?

I always wondered how my Mac could connect to the internet when the recovery partition is booted and my main system partition is locked (filevault2). Some googling revealed today (e.g. here, here, ...
9
votes
2answers
4k views

Can Time Machine volumes be easily encrypted with FileVault 2?

Now that File Vault 2 can encrypt the entire disk and encrypt external drives, can I have a fully encrypted Time Machine volume?
9
votes
1answer
2k views

How can I configure the keyboard layout for the FileVault 2 unlock screen?

I installed Mac OS X Lion and enabled FileVault to have a full disk encryption of my system disk. I bought my Mac with a French keyboard (since I'm French and used to this layout) but my Mac is ...
8
votes
5answers
9k views

Can I use FileVault only for specific folders?

Can I set up FileVault to encrypt only specific folders inside of my Home folder but not the whole Home folder? I want to do this because it's not very convenient for me to encrypt the entire Home ...
8
votes
2answers
406 views

How does Apple's Power Nap interact with File Vault?

If a machine is periodically waking up to check for updates with Power Nap, does this also mean the disk encryption keys are always in RAM? If so, this makes a DMA attack against a "sleeping" Mac ...
8
votes
1answer
4k views

Extremely slow write speed to encrypted external drive on Mavericks

Writing to a fully encrypted USB flash drive on Mavericks is extremely slow. The drive model I used for testing was a Kingston DataTraveler Ultimate 3.0 G3 (64 GB). I tested transfer speeds by ...
8
votes
2answers
2k views

How to create a pseudo-guest account in Lion with FileVault 2?

The guest account always had very limited permissions, unfortunately since activating FileVault on Lion it's deactivated by default. (More about it here: Unable to create Guest Account after enabling ...
7
votes
1answer
14k views

How can I reformat a drive that contains an encrypted volume?

After OS X 10.7 came out with its disk-encryption features, I encrypted an empty USB thumb drive just for grins. I never used it, and eventually decided to reformat it as a normal drive for use with ...
7
votes
2answers
3k views

Filevault or Truecrypt?

I'm currently using Filevault on Mountain Lion on one of my machines and on Mavericks on another one. Recently, I discovered Truecrypt, which does similar work to Filevault. Does anyone know what's ...
7
votes
2answers
2k views

How can I use FileVault encryption and still track my laptop if stolen

I've spent quite some time over the last few days trying to work out how I can combine the clear data security advantages of encrypting my machine with FileVault 2 under Lion, and the theft-recovery ...
7
votes
1answer
3k views

Unable to create Guest Account after enabling FileVault

After upgrading to Lion, I tried creating a guest account and it worked. I enabled FileVault on Lion and went through the process of encryption. After that, when I am trying to create a Guest ...
7
votes
3answers
6k views

Dual boot Linux and Lion on FileVault 2 disk

I have Mac OS X Lion installed on FileVault partition. On the same disk I've installed GNU/Linux. When I boot my MacBook I can only boot Lion. How to boot Linux? In case you need here is more ...
7
votes
1answer
2k views

After enabling File Vault, OS X doesn't mount disk automatically anymore

I have an external 2 TB LaCie drive connected via FireWire 800 to my MacBook Pro (8,2 – early 2011 model), which runs OS X 10.8.5. It has one big partition which is a Time Machine target, and the ...
7
votes
1answer
5k views

Does FileVault encrypt my BootCamp partition?

If I enable the new FileVault feature in Mac OS X Lion, will it also encrypt my existing Windows bootcamp partitions? (And/or any new bootcamp partition I create?) Update: If not, where can I get ...
7
votes
2answers
20k views

Yosemite won't boot any more after attempting to enable FileVault and TRIM

I installed Yosemite yesterday and it was working fine. Now whenever it tries to boot it runs Safe Mode and fails 1/3 of the way through. From what I can remember I went to enable FileVault and ...
7
votes
3answers
4k views

Speed of old Filevault vs. new Lion full disk encryption

How do the old Filevault and the new Lion full disk encryption compare speed wise? ATM I am using Snow Leppard with FileVault to encrypt my whole home directory, which makes opening IPhoto, Chrome or ...
7
votes
2answers
1k views

Hide “disk password” login option at EFI (Filevault) login screen

I encrypted my volume before installation and have added my user as FileVault user afterwards. Now I can login with either the disk password or my user login password at the EFI (Filevault) login ...
6
votes
2answers
5k views

Why doesn't FileVault work on a RAID volume?

At work, I said to my colleague that it was not possible to enable Filevault on a RAID volume. He was surprised and asked me the technical reason. So I would like to know. It's strange because ...
6
votes
4answers
15k views

How to recreate Lion Recovery HD partition?

I have a Macbook Air Mid 2011 which came pre-installed with Lion. After a trackpad hardware problem I wanted to be sure that none of my programs was responsible for the problem. I booted into the ...
6
votes
4answers
5k views

Can't turn on FileVault after restore from Time Machine

I have bought myself a SSD and replaced the internal disk with it. I was running Lion before (latest patch level). I'm using Time Machine to back my laptop up. When I was done replacing my HDD I ...
6
votes
4answers
4k views

For a FileVault user of Mountain Lion: can I avoid the automated login, which normally follows unlock of the encrypted startup volume?

I have FileVault enabled with two users: AdminGuy OtherGuy. I want AdminGuy to: have the ability to unlock the HD, and therefore only he can enter a u/n + p/w at boot to start boot up have the ...
6
votes
2answers
1k views

FileVault Performance Compromise?

I'm thinking of using FileVault to secure my computer - it looks like an ideal solution for everything. However, I'm wondering - will it effect the performance / battery life of my computer ...
6
votes
1answer
822 views

With FileVault on, is secure trash emptying needed?

I'm running Mavericks and have FileVault set for the whole disk. Is there any value then, in emptying the Trash securely? Given the whole disk is encrypted. I'm not certain on how these two methods ...
6
votes
2answers
4k views

Can't resize (FileVault) partition after Bootcamp removal

I have a recent Mac with two partitions. The first one contains MacOS, and is encrypted with FileVault. The second one contained a Bootcamp Windows installation. Here is a screen shot: I deleted ...
6
votes
1answer
2k views

Mount home sparsebundle when SSH

I'm using FileVault to encrypt my homedir. But when I'm not logged (locally) into my remote machine and I'm connecting to it trough SSH my home contains only the sparsebundle file. How can I mount it ...
6
votes
1answer
460 views

10.7 FileVault & TimeMachine

I would like to know if turning on FileVault affects TimeMachine Backups; if yes how? (E.G. Do the backups become encrypted? etc.)
6
votes
3answers
2k views

After disabling Filevault 1, is it possible to enable it again in Lion?

It seems that after disabling Filevault 1 in OS X Lion, there no longer is an option to choose between Filevault 1 and Filevault 2 functionality. I actually prefer Filevault 1 over Filevault 2, since ...