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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Setting up AppleRaid Mirror + CoreStorage Encryption

I'm on a Mac Mini Server 2011, which has two 500GB disks. I'm trying to set up a AppleRaid Mirror with Core Storage encryption. I boot the machine through an OS X Installation USB PEN. Going to ...
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2answers
77 views

What's the point of using FileVault if OSX automatically decrypts the disk?

I have an external HD I use for extra storage and it's encrypted, every time I plug it in OSX asks me for the password to be able to read and mount it. In my mind, this makes sense, the disk is ...
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9 views

Repair permissions set incorrectly as admin on encrypted 11.11.5 HD [closed]

While trying to stop apple from creating a thunderport bridge so they can watch me for some reason, I set the Admin rights to "read only (Dropbox) and closed window. Windows started shutting down and ...
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44 views

Mac OS X, TrueCrypt/VeraCrypt, Encrypted HFS+, performance

My question is about the disk I/O performance with different kinds of encryption as it seems that my laptop is suffering from some problems. First, let me describe my hw/sw setup: MacBook Pro (15-...
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1answer
18 views

How can I find out which process was stopped by RansomWhere?

I use RansomWhere, a tool to protect from ransomware. I have OS X Yosemite. As far as I understand, RansomWhere just warns me whenever an app tries to encrypt data. It's up to the user to judge ...
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3 views

El Capitan: history of Word 2011 document on encrypted disk stored elsewhere?

This is a pretty esoteric question, so I apologise in advance, but I really need to know the answer. I have an encrypted sparsebundle in which I have a number of Word documents. I need to know that ...
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1answer
24 views

Very slow file copy to encrypted disk image

I have a new iMac running El Capitan. Bought a SanDisk flash drive for backup. I created an encrypted disk image on the flash drive. Here's the problem: copying 10GB to the unencrypted part of the ...
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1answer
19 views

External hard drive does not eject

Since I encrypted my external hard drive it does not stop running after I press eject. It disappears from the sidebar in Finder but it does not stop running. I have removed it and connected it again ...
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7 views

how do I see for existing volumes if the FileVault recovery key is stored in iCloud

I own several Macs (also for family members) and the first thing I do is turn on FileVault. How do I check if the recovery key is not stored in iCloud (for existing volumes, not new ones)? If you'...
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20 views

What are current cross-platform disk encryption options?

I just got a new 1TB USB SSD, to use as a backup drive. I need cross-platform compatibility and durability. I've used LUKS+ext4, and it seems both reliable and well-established (i.e. long-term support ...
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1answer
29 views

Should I have my Mac on until “external” hard drive encryption process is done?

I have a MBP 2012 and replaced the internal hard drive with an SSD and the SuperDrive with a 1TB HDD. I'm encrypting my 1TB HDD. Should I leave my Mac on until it's done? Does OS X pause the ...
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1answer
12 views

AES-IS support and processor architecture in 2010 iMacs

Which processor architecture was used in mid 2010 27'' iMacs? (iMac11,3 - EMC 2390) The CPU is an Intel quad-core Core i5 CPU, 2.8 GHz. I'm trying to find out if it supports the AES Instruction Set ...
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1answer
59 views

How to encrypt zip file and filenames via command line?

Using command line on Mac, I know that I can encrypt a directory with the following command: zip -er Directory.zip /path/to/directory However, this does not encrypt the filenames themselves. If ...
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1answer
23 views

Which cryptographic method does iTunes use to encrypt Backups?

I am writing a little cli tool to recover data from iTunes Backups. How does iTunes encrypt its Backups?
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69 views

Freecom HD Freecom 1TB encryption “A partition, not a whole disk, is required for this operation”

I have a Freecom HD Freecom MG (1000GB, Aluminium) which I wish to use as a Time Machine disk. I tried to encrypt the disk but got the error "A partition, not a whole disk, is required for this ...
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35 views

VeraCrypt and MacBook Pro 2015 Retina whole disk encryption?

I use whole disk encryption on my MacBook 15" 2015 with BootCamp. When I restart Windows for test encryption it comes only black screen when try to boot Windows. After that, need then restore to old ...
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1answer
106 views

open bitlocker USB stick on mac os X

I have a USB stick encrypted by Windows 7 built-in tool (bitlocker). I would like to open it on my Mac OS X El Capitan. When I open it, all I get is a file "BitLockerToGo.exe" and another "Read Me....
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1answer
44 views

Is there any part of OSX that gets a significant speed boost from Intel AES instructions?

I've been comparing some specs between Mac Pro models, specifically with the jump from Harpertown (a.k.a. Core 2) to Gulftown/Westmere (a.k.a. Core i7). While there were expected incremental ...
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52 views

Permanently Decrypt non-CoreStorage Partition Encrypted with FileVault

I am asking this on the behalf of someone who did not want to sign up for the SE network. I will use first-person for simplicity. When I bought my computer, it came with FileVault enabled as default. ...
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15 views

How can I make a secondary encrypted volume open during the boot process?

When booting off a FileVault encrypted volume, OSX is capable of accessing the volume for the boot process once the user has entered their password at FileVault prompt. I want to configure my system ...
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35 views

Difference between FileVault and setting a partition format to Mac OS (Journaled, Encrypted)

Since I have multiple partitions (some for Linux and some for Mac OS) I can't enable File Vault. It somehow complains that it can't do the encryption, given that there are other partitions. Now what ...
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1answer
49 views

Is it possible to encrypt a hard drive that is dual booting ubuntu using rEFInd?

I recently installed ubuntu on my macbook pro. I am using rEFInd to dual boot ubuntu. Following the installation, I tried to encrypt my Macintosh HD partition by first converting the disk to core ...
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1answer
47 views

Can iPhone storage be read without the 4-digit password? Or is it encrypted?

I had a problem with the digitizer connector in my iPhone 5S so I can't use the screen anymore, I couldn't even unlock it to back it up. So I send it to a logic board specialist to replace damaged ...
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1answer
65 views

OpenSSL encryption method doesn't work on El Capitan

The following file encryption method works on OS X Yosemite: Encrypt: openssl enc -aes-256-cbc -salt -in file.zip -out file.zip.enc Decrypt: openssl enc -aes-256-cbc -d -in file.zip.enc -out file....
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1answer
38 views

In which part of iOS is the auto-erase feature implemented and how does it work?

I followed the Apple vs FBI case a bit, and I'm super curious how Apple implemented the auto-erase feature. Reading their documentation, it seems like it is as simple as erasing a key that is used to ...
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1answer
104 views

Apple Mail doesn't show when a mail is encrypted (using S/MIME)

I have recently started using S/MIME since we got a certificate from our school and are advised to use it when possible. I am using El Capitan 10.11.4. The encryption and decryption process ITSELF ...
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1answer
91 views

unlock external locked encrypted disk with applescript command by filling dialog box to cracking password by force brut

I make a terrible mistake. I totally lost my paper with the secret password for my encrypted external GUID hard drive. This external drive contains many pictures but also some works documents very ...
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89 views

How to list failed login attempts on Mac OS X 10.11 El Capitan (FileVault enabled)?

Just now, something strange when I open my Macbook Pro Retina : the password entry was locked for 30 seconds and a tooltip saying me to use the machine's encryption passphrase to unlock it. I wonder ...
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1answer
93 views

iTunes local backup of iOS device: can't disable encryption

I have a strange problem with iTunes local backup of an iOS device (an iPod, in this case). I know I've backed up the iPod to my computer before, but iTunes states, "Latest Backup: Your iPod has ...
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2answers
44 views

Always ask for password when mounting encrypted partition

I have an external disk with partitions A and B. B is an encrypted HFS volume with as password. (Presented as "Apple_CoreStorage" or "Logical Volume OS X Extended"). When I connect the drive, OS X ...
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1answer
187 views

Does FileVault protect against ransomware?

I've already asked a question about ransomware on OS X in general. But I failed to get a response regarding whether FileVault protects against it. That is what this question is about. I'm also ...
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Preview of pictures in Cloudfogger wanted

I used to work with Cloudfogger on Windows. I like it there. On Mac I do not like the implementation that much. For example the preview of photos does not work from within Finder. Does anyone have a ...
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2answers
75 views

Do files copied to an encrypted disk image (dmg) encrypt themselves?

Disclaimer: I'm not sure whether or not this belongs in Ask Different or security.stackexchange.com, but I'm using a .dmg and Disk Utility, so I'll put it here. End of disclaimer. The title says most ...
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1answer
55 views

Error when encrypting .dmg disk image

I have a .dmg file of approximately 32 GB and I want to encrypt it. When I try to, using Disk Utility > Images > Convert, I get an error "status 28". Any idea what this means?
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1answer
33 views

How do I encrypt emails using Apple Mail?

Gnu PGP was integrated into Mail using this project, but it appears to be dead (only supports old versions of OSX) http://www.sente.ch/software/GPGMail/English.lproj/GPGMail.html Is there any other ...
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3answers
700 views

TrueCrypt alternative for Mac OS X

I'd need to create an encrypted volume on my MacBook Pro running OS X El Capitan. It's been a while since I needed to do something like that, I think it was 2010 when I used TrueCrypt. I know that ...
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50 views

howto encrypt “WD My Passport Pro” online? support.wdc.com with dangerous solution (no security)

I wish to encrypt my WD My Passport Pro drive. I receive error With Google I found An error message occurs when attempting to create an encrypted backup on a My Book Thunderbolt Duo in the Mac ...
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2answers
465 views

Logging in to main user turns off the mac

I am not a mac user, and honestly, I have no idea how to use one (besides the terminal). So, a friend asked if I could help them out with fixing their computer. She says the last thing she was on, was ...
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32 views

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
57 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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3answers
201 views

Recover deleted Encrypted OS X Extended volume

I accidentally formatted an external 1TB HD to FAT file system using Disk Utility in Mac OS. The disk used to be HFS+ encrypted. Encryption was done when I created the OS X Extended partition, not ...
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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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1answer
431 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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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
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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1answer
127 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 ...
2
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1answer
243 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
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 ...