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

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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 ...
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 ...
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?
30
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?
5
votes
1answer
2k views

Is the Guest account a security risk with full disk encryption on Mountain Lion?

I have File Vault 2 full-disk encryption enabled on my 2012 MacBook Air running Mountain Lion. By default it also has a "Guest" Safari-only account available. I just tried it the other day and found ...
4
votes
4answers
3k views

Guest login got enabled even though FileVault 2 is enabled and Guest login is disabled

I rebooted my Mac yesterday after installing the Apple update TS4088. Even though I disabled Guest Logins in my Users Preferences and have enabled FileVault 2 since the start, I am able to see Guest ...
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 ...
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
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 ...
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 ...
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.
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 ...
5
votes
2answers
708 views

FileVault 2 encrypted disks with my home directory on a different drive

I have multiple volumes on my mac and I just enabled encryption on the other drives. My home folder is stored on one of those drives. Now I can't login because it can't see my home directory, but if I ...
5
votes
2answers
2k views

How can I get Time Machine to back up the contents of a File Vault while logged in?

Disclaimer: this question and answer are targeted to the Snow Leopard implementation of FileVault where the user home folder is only encrypted in a bundle. Lion's implementation of FileVault doesn't ...
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
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 ...
2
votes
3answers
17k views

How do I mount my FileVault 2-encrypted volume?

I have a Lion 10.7.2 system (on MacBook Air 13" 2011) which doesn't boot anymore after a restart. My HD is encrypted with FileVault 2, and after I click on my username and enter my password, it ...
1
vote
1answer
166 views

Time Machine + FileVault on Lion or Mountain

If I stop the backup it says: "now encrypting...", is the data saved "not encrypted" before being encrypted? Can I make it "always encrypted"? Non-encrypted transfers are a problem for me.
0
votes
1answer
2k views

Can't Enable Filevault because Recovery Partition Missing

I'm trying to enable FileVault for my home directory on my Macbook, but every time I try it tells me it can't because the Recovery Partition is missing. however, if I drop to a terminal and run ...
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 ...
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 ...
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 ...
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 ...
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 ...
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?
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 ...
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
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 ...
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 ...
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 ...
2
votes
5answers
30k views

How do I fix my SSD after installing Yosemite and Enabling TRIM? No boot & can't erase

I recently upgraded to Yosemite, enabled FileVault and foolishly enabled TRIM (had no idea it wasn't supported). Upon restart, my machine gets the grey screen with the crossed-out circle of death. ...
1
vote
1answer
162 views

Is it possible to have multiple filevault2-activated partitions on one disk?

What I would like to have: A disk with the following systems on it: OS X 10.8 (FV2-encrypted) OS X 10.9 (FV2-encrypted) Windows 7 When I try to start FV2-encryption on my secondary partition, OS X ...
1
vote
2answers
6k views

What does “[Update Needed]” mean when attempting to boot from an encrypted backup?

When I attempt to boot from an external drive that is an encrypted SuperDuper! mirror of my internal hard drive, I get a login screen that's missing my account an instead has an account called ...
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 ...
5
votes
1answer
9k views

How do I set up a Mac to use both FileVault and Boot Camp?

I understand FileVault will encrypt the volume Mac OS X is installed on. I guess this means that Windows won't be able to read it. How can I set up a MacBook to use FileVault for the Mac OS X ...
4
votes
2answers
10k views

How do I encrypt an external drive with FileVault 2 in OSX Yosemite

Ok, so according to https://www.apple.com/osx/what-is/security/ I should be able to encrypt ANY external drive..."with ease" using FileVault 2. I have a brand new (empty) 2TB Fantom Drive model: ...
2
votes
1answer
1k views

Can I have both a case-insensitive system volume and a case-sensitive volume within an encrypted CoreStorage volume?

( seems possibly related to Is it possible to have multiple filevault2-activated partitions on one disk? ) I have a MBP with a single internal SSD and I'd like: to have everything on the disk ...
2
votes
1answer
2k views

How do I completely and securely wipe a FileVault (SSD) drive?

When I follow Apple's instructions for preforming a complete erase and reinstall on a FileVault 2 encrypted SSD machine, and choose a high level of security for the erase, I get an error, and the ...
2
votes
2answers
10k views

FileVault 2 encrypted drive not accepting unlock password in recovery mode

My Mid-2012 Mac Book Air running an up-to-date install of Mountain Lion crashed the other evening (browsing the web, one tab started beach-balling, and refused to be force-quit so I forced a restart). ...
2
votes
0answers
1k views

FileVault 2 gives “boot file not written” error

I'm trying to enable FileVault 2 in Mountain Lion, but a few steps into the process of turning on the encryption I get the error "Boot file not written" and the encryption fails to succeed. Anyone ...
1
vote
0answers
357 views

Mac OS X 10.10.5 - How can I encrypt only my home folder without Apple FileVault

How may I encrypt my home folder without using Apple FileVault? Is it possible to create an image of the user folder with DiskImage and mount that as home folder? How to make this. PS: I can't use ...
1
vote
1answer
2k views

How can I have one password for FileValue 2 (pre-boot password) and another for my user login?

I know this is possible. When I first installed Mavericks, I set up a default password of "password". I then enabled Filevault 2. At some point I then changed my password from "password" to my ...
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. ...
4
votes
1answer
2k views

SSD boot drive does not work only on primary drive slot

I have the following very strange problem with my 13″ early-2011 MacBook Pro. The disk configuration is as follows: Primary slot - FileVault 2 encrypted 120GB OCZ Vertex 3 SSD Secondary slot - the ...
4
votes
4answers
4k views

Grey login screen after enabling encryption

After turning on encryption with FileVault on my MacBook Air with Mountain Lion my login screen went gray. Is there a way to go back to the default one? The grey one The default one
3
votes
2answers
5k views

Encrypt data before sync to dropbox?

If I have FileVault on, this will encrypt all my data on my HDD. so this said, will this send to dropbox the encrypted files or the original files?
2
votes
1answer
190 views

Encrypt FAT USB drive under El Capitan (10.11)

I have a USB drive I would like to encrypt. It's formatted in FAT (for use with Mac & Win) and I can't seem to find a way to encrypt it as: FileVault doesn't encrypt FAT. TrueCrypt can be ...
2
votes
1answer
564 views

How (in)vulnerable is OS X to encryption ransomware?

These days, malicious software seems to be infecting Windows computers, encrypting their data against their will, and asking for a Bitcoin ransom in exchange for the encryption key. In order for ...
2
votes
2answers
315 views

Headless Mac mini: Share Screen + FileVault

At the office we have a Mac mini that will be used to run a Teamcity agent. It is a requirement from our security department that we enable FileVault on this machine. I will also need to manage ...
2
votes
1answer
287 views

FileVault sparsefile uses double of actual allocated disk space

I just noticed that for some reason disk usage (du) reports that FileVault in my home directory would use its allocated disk space twice: [/Users]% sudo du -h -d 1 . 184G ./.moo 170G ./moo 204K ...