Questions tagged [filevault]

FileVault is a macOS feature allowing full-disk encryption using XTS-AES-128 with a 256-bit key. Older implementations encrypted the user folder only.

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104
votes
15answers
85k 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 ...
20
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2answers
4k views

Data Not Backed Up, Partition Type: FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF

I was trying to install Linux on my MacBook for class when I bricked my computer, which now in an unbootable state. I made my partition too small, so I was going to delete and create a larger one. ...
17
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?
8
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4answers
16k 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 ...
67
votes
3answers
129k 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?
3
votes
1answer
10k views

Partition type suddenly FFFFFFFF-FFFF-FFFF-FFFF-FFFFFFFFFFFF, drive unmountable

I have two drives inside my MBP, an SSD for the OS and the original HDD for large Data. The HDD has 3 Partitions: My Data (Core Storage volume) 20Gb for Linux 4Gb for Linux Swap Recently I ran ...
60
votes
9answers
69k views

How to view progress when encrypting a disk?

Mountain Lion allows one to encrypt any disk by right-clicking on the disk in the Finder and selecting Encrypt from the contextual menu. Is there anyway to check on the progress of this encryption ...
18
votes
9answers
72k 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 ...
12
votes
1answer
13k 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.
11
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2answers
13k 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 ...
6
votes
4answers
4k 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 ...
3
votes
2answers
711 views

Automatically Mount Encrypted Core Storage Volume (10.14.4+)

Prior to Mojave 10.14.4, macOS would automatically attempt to mount locked Core Storage volumes, and if the necessary password was found in the current user's keychain this would occur automatically. ...
7
votes
1answer
4k 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 ...
3
votes
2answers
2k 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 such ...
44
votes
5answers
123k 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 ...
32
votes
1answer
146k views

User account doesn't appear on first login screen

After restarting my computer when I am presented with the initial login screen (the light gray one with the restart and shut down buttons), I see only two of my three user accounts. If I log in with ...
15
votes
2answers
6k 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 ...
18
votes
3answers
9k 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 ...
14
votes
2answers
22k 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
7answers
53k views

MacBook startup problems - mouse and keyboard not working at login / stuck on apple logo

Today I restarted my Mac after several weeks uptime. After restart, I got the login screen with unresponsive keyboard and mouse. Right before this problem I had Aperture open, with a problematic ...
6
votes
2answers
2k views

How can I get Time Machine to back up the contents of a FileVault 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 ...
5
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2answers
1k 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 ...
3
votes
1answer
3k 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 ...
8
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 ...
8
votes
2answers
7k views

FileVault optimizing… 43 days remaining

My FileVault says that I have to wait for 43 days for it to finish optimizing something. As soon as I launch any application it stops working. So the only time that I can dedicate for the FileVault to ...
8
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 account,...
7
votes
1answer
13k 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
3answers
26k 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 ...
2
votes
1answer
1k views

Password incorrect after enabling FileVault

I use FileVault to encrypt all my disks. Lately I had problems restarting my MacBook. After restart, the keyboard and mouse froze at login, making it impossible to login or do anything. It appeared ...
1
vote
1answer
178 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
3answers
3k 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 "...
5
votes
2answers
18k views

How do I stop FileVault's decryption?

I accidentally turned off FileVault on my MacBook when trying to allow downloaded Canon driver software to be opened. FileVault is currently decrypting and I want to stop it as soon as possible. How ...
5
votes
1answer
17k views

How long will FileVault encryption take? Can I stop it?

I enabled FileVault to encrypt my hard drive a few days ago. The encryption process is still not finished and the estimated time keeps changing. It's been anything between "4 days" and "300 days". The ...
0
votes
1answer
6k views

Can I enable FileVault and then partition my hard drive later?

I just bought a 2014 MacBook Pro with a 512GB SSD. I updated to El Capitan today and when it booted up for the first time, it asked me if I wanted to enable FileVault. I chose not to because I wasn't ...
28
votes
5answers
24k 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
3answers
10k views

How do I update the FileVault 2 recovery key stored in iCloud?

It's been a long saga getting to the point where I am comfortable that my new Macbook Pro has FileVault 2 enabled properly on Yosemite. I ran into the "Encryption paused - connect power adapter" ...
15
votes
2answers
10k 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 ...
11
votes
3answers
4k 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 ...
22
votes
2answers
35k 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 ...
15
votes
3answers
13k 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 ...
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
1answer
6k 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, ...
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 ...
10
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?
10
votes
1answer
7k 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 ...
1
vote
1answer
330 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 ...
10
votes
3answers
21k 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: ...
7
votes
2answers
23k 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
1answer
21k views

How to get macOS High Sierra file vault encryption to continue/How to cancel encryption and decrypt drive?

On my MacBook Pro Mid 2015 running macOS High Sierra I was trying to encrypt it using FileVault. I can’t tell if progress is stuck or just moving very, very, very slowly What are ways I can get the ...
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 ...