the process of converting information using an algorithm (or cipher) to render the information unreadable to anyone who doesn't have the algorithm (also known as a key)

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Is TRIM enabled for FileVault encrypted disks?

On a stock MacBook Pro without FileVault, TRIM should be enabled out of the box according to wikipedia. Infosec experts warn against TRIM in conjunction with full disk encryption. When ...
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2answers
266 views

Is there a way to force ssh tunneling to be required for Screen Sharing

I have enabled Remote Management on a mac. Everything works fine when I connect from another mac using Apple's Remote Desktop app. However, I also want to have a client on a windows machine. In that ...
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2answers
60 views

Need a cli to check the sha256 hash of a file

To check the sha1 of a file I would use openssl sha1 <file> I'm not sure what to use to check the sha256 hash of the file however, what would you recommend?
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25 views

Can data be recovered from a drive which was encrypted

I encrypted a USB drive of 16 GB few months back and stored files on it. Yesterday I destroyed its encryption using terminal diskutil cs list command without realizing that it had important data ...
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1answer
11 views

I've added a second HD into my Macbook 2011 instead of CD-ROM. Is it safe to encrypt it using Finder?

Years ago I changed my cdrom in my Macbook for a second hard drive, and have been using a SSD as a first drive ever since. This HD is shown in Finder, and, clicking on it with two fingers, there's an ...
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2answers
189 views

Encrypt External Hard Drive for Mac and Linux

I have an external hard drive that I backup with Time Machine. I'm trying to determine the best way (or if it's even possible) to encrypt it so that Time Machine can still back it up and it can be ...
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1answer
468 views

How to open an encrypted dmg file in Windows?

I made encrypted disk image on my MacBook. Now I want to open it on my PC (Windows 10). How can I open (mount) an encrypted dmg image file in Windows 10?
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1answer
36 views

10.11: Good Samaritan message not showing on Filevault2 unlock screen

You can set up a lock Message under System Preferences => Security & Privacy => General => Set Lock Message. This Message is stored in NVRAM. Under 10.9 Mavericks it was not only shown on ...
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70 views

Keychain multiple

I´m new with Mac OS X, my system is El Captain 10.11.3. A few days ago I use keychain to generate two certificates for special purposes with other email address, do the export and all is ok. As I ...
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1answer
130 views

OS X 10.11 Disk Utility, encrypted dmg password and keychain

In previous versions of Disk Utility there were checkboxes whether to store the password in the keychain or not while creating an encrypted dmg image. Now there are less options. Does the new version ...
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1answer
35 views

Change encrypted internal HD permissions to prevent password prompts

I have an iMac (running OS X 10.11.3) with a dual disk setup. A ssd for the OS (with Filevault turned on) and a HDD for storage that is formatted OS X Extended and Encrypted. The intention is to ...
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1answer
34 views

Is there a limit on logical volume size for FileVault?

I'm curious about (and was unable to find documentation for) any size limits for FileVault in OSX (10.9.5 Server). I'm concerned about any sort of corruption/instability that could occur after ...
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1answer
246 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 ...
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1answer
44 views

Protect files from other administrator accounts

So at work there is a "shared" server that people can run things on that take a long time. I make quite a bit of use of this machine to the point where I made my own login to separate my user files. ...
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0answers
30 views

Can a Standard User format an encrypted drive?

I have recently partitioned my drive into a trap OS. If my Macbook is stolen I want to give the users access to use the device to increase the chances they will connect it to the internet and I can ...
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1answer
47 views

Does using Sleep with FileVault negate some benefits of FileVault?

As I understand it, FileVault makes you login before you computer boots to the OS in order to unlock the drive. This means someone getting ahold of your laptop when it is off cannot get at the data. ...
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3answers
3k views

FileVault security hole when used on SSDs

I just woke up to the fact that it looks like user data can be leaked when using FileVault and Migration Assistant on an SSD on a new Mac when following the default prompts. When I set up a new Mac, ...
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1answer
550 views

How to encrypt exFAT on external drive?

I have a lot of data on my external drive. The file system is the exFAT. I believe it is not possible to encrypt that filesystem with FileVault. Do you know how (tool maybe) to encrypt exFAT on an ...
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1answer
36 views

How to secure my mail in iOS? [duplicate]

Can you please advise what is the best application for email encryption using iPhones and iPads?
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3answers
12k 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 ...
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0answers
19 views

I have the password but can't recover data from my encrypted filevault USB drive

I can open the drive and see the top level folders. Sometimes I can see file names, sometimes I can't. If I attempt to remove the encryption I get an error message. It's the same from the Finder or ...
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0answers
46 views

Is possible to create bootable encrypted partitions of Win10 + Debian + DATA on external SSD?

I'm dealing with pretty tricky problem. I want to have external disk completely separated from OS X running on internal SSD. On external SSD should be three partitions: Windows 10 - is possible to ...
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0answers
81 views

Store SSH public/private keys in iCloud Keychain

Is this possible? When going into the "Keys" category in iCloud Keychain, the + button seems to be disabled.
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1answer
49 views

How do I get my iPhone backups open

I'm trying to extract my old iPhone's backups. I'm using the iPhone Backup Extractor, and it tells me the status of my backup is "complete and encrypted". I don't recall ever encrypting my backup so I'...
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1answer
24 views

Formatting mac and encrypted memory

Currently I have a 128GB SD for data in my macbook, but is encrypted using utility. If I format my mac, the stored key will be gone. How can I do this safely? Is there any way to do this without ...
0
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2answers
108 views

how safe is an HDD encrypted with filevault?

I have a macbook pro and I want to encrypt the whole system with filevault. My question is now, how secure are my data for removing hard disk from device and mount it in an external case? For ...
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1answer
24 views

Encrypted Hard Disk troubleshooting

I have problems to read an encypted hard disk. Unfortunatly I do not remember if I did encryted with Time machine or Disk Utitlity. I think I did it with the first one (Time Machine) as I used the ...
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2answers
264 views

Does FileVault 2 encrypt keys in sleep mode?

I have an early 2015 13" MacBook Pro running OS X 10.11.2 and I'm considering enabling FileVault 2. I realize that the disk is always encrypted, even when the machine is in use and only parts of it ...
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1answer
163 views

Is it possible to encrypt the boot disk in El Capitan?

On my iMac running OS X 10.11.3 I'd like to encrypt as much as possible of the built-in disk -- like that I don't need to worry about replacing/sending in a broken disk. From a casual few web ...
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9answers
39k 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 ...
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1answer
703 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 ...
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1answer
546 views

I can't use Mail.app in El Capitan to encrypt email with a self-signed certificate

I generated a self-signed root S/MIME certificate using Certificate Assistant. I made sure the resulting certificate was in my Keychain, and trusted it explicitly. In attempts to send encrypted mail ...
6
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2answers
900 views

Is there a way to encrypt data on iCloud?

I currently use Backblaze for online backup. I am thinking of switching to just storing all my documents on my iCloud drive. With Backblaze, you can set an encryption key. Without this key no one ...
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2answers
38k views

truecrypt 7.1a requires Mac OS X 10.4 or later on Yosemite 10.10

After reading articles about the state of Truecrypt in February 2015, I decided to download the last stable version of Truecrypt that allows full usage of Truecrypt: that is, version 7.1a 7.2 ...
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1answer
133 views

How can I encrypt a disk where diskutil cs convert reports “a problem”, leaves disk unreadable?

I'm trying to encrypt my Time Machine backup volume, but diskutil refuses, and leaves the disk unreadable (but repairable using Linux). How can I proceed? It's a Western Digital Elements 107C 3TB ...
0
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1answer
103 views

FileVault: How come a new user can log in without disk password?

I thought I had enabled full volume encryption on my OS X 10.9.5 MBP. Then I created a new user and when rebooting, this new user is able to log in without knowing the password for the disk. The ...
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1answer
79 views

Selling old MacBook. Best way to clear HDD?

I'm selling my current MacBook (2011 MPB). Since purchase I have had FileVault enabled (Mac OS X Snow Leopard), thus making me think that I can merely clear the data and not worry about having to ...
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5answers
646 views

Portable encrypted USB stick

I would like to have an encrypted USB stick that I can use with Windows and OS X. I could format it as FAT32 and then have a encrypted image files (more than one due to the file size limitation of ...
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3answers
21k views

Turn off encrypted backup on iPhone that has a profile without removing profiles

I have iPhones that have profiles on them that were password protected profiles and those passwords have been lost. So we need to wipe the iphones and was hoping to to a backup first and then restore ...
2
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3answers
8k views

How can I use Jabber with OTR on IOS?

I would like to use Jabber with OTR Encoding on my iPad. Which clients are supporting this? Apps already tried: ChatSecure doesn't seem to work with XMPP. IM+ Pro is not recommended. Trillian has ...
2
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1answer
35 views

Encrypt home directory only

I have a shared computer that is primarily for my use, but occasionally when I'm out of the office others would like to use it. These others require Administrator access to be able to install ...
2
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1answer
36 views

Use backup drive with Snow Leopard

I have two Macs, one is running Snow Leopard and can't be updated any further. The other is running El Capitan. I use FileVault on the latter and I also want to backup the latter to a 1TB external ...
2
votes
4answers
7k views

How can I get files off of a Mac when the display is broken?

I need to get files off of my mac, and SSH and RDP are both disabled. My screen is broken, and my SSD is encrypted by FileVault. Now, I do have one advantage: An external monitor. However, it will ...
1
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1answer
28 views

Encrypting contents of Macbook Air [duplicate]

How much of a performance hit is there when encrypting the contents on a Macbook Air? I'm at the point in its setup where it asks me if I want to encrypt. If I say "no", can I encrypt it later?
1
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1answer
320 views

How to get the FileVault recovery key?

I want to mount my (non-bootable) Filevault encrypted drive on Linux. I know the user-facing password to decrypt it, but not the recovery key. From what I've read, I assume that the recovery key is ...
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2answers
578 views

Drive does not stay mounted

I created an encrypted RAID 0 disk following Why doesn't FileVault work on a RAID volume? on a WD My Passport Pro $ diskutil cs createLVG TimeMachineLVG disk5 Started CoreStorage operation ...
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2answers
800 views

How can I clear the kernel extension caches while using FileVault 2?

I have the same problem as this user, Air + Lion : plug in USB, keyboard/pad stop working , where the built-in keyboard and trackpad on my MacBook Pro stop working (and drop out of the USB devices ...
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1answer
52 views

Encrypted disk does not accept password on Mac

I made an encrypted backup disk, and I've entered the exact correct password a few times, but system does not accept it. Any idea what is going on? Strange on other backup disk behaves in the same way....
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1answer
1k views

Can't encrypt external hard drive

I'm trying to encrypt an external drive of mine using Apple's built in drive encryption tool into OS X through Finder. The drive is formatted as Mac OS Extended(Journaled) and I'm plugging the drive ...
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0answers
8 views

Password protected drive gives error when moving from a time machine partition

Goal: Move from time machine partition Problem: Password protection gives an error. Partitioned my wd elements 500 gb into two equal sized backups, elements1 and elements2. I perform time machine ...