While she hoped that the thief would simply junk or erase the hard drive, there was no way for Annie or her employer to be sure that the many office and personal files she had on the PowerBook hadn’t been compromised.Mac Encrypted Disk Image Not Asking For Password Posted on High Sierra 10.13.4 does have a nasty bug that can cause hidden data loss if one is copying a large number of folders and files onto a sparse image.If you have a Mac running OS X you have a built-in option available to you an encrypted password protected disk image. Among the stolen items was the PowerBook she used for work. True story: A friend of mine—a programmer I’ll call Annie—came home one day to find her new town house burglarized. Name: This is the name of the disk image that mounts in. (If you want to take a folder and create an encrypted disk image with its contents, choose File > New Image > Image from Folder, and select the folder you want to use.) Enter a name for the disk image file in the Save As field, then you have a number of options at the bottom of the dialog.In the office, you can often copy confidential files to a secure server, and you have other security tools (like locked doors and server-based backup systems) to protect your data. The best encryption methods—known as—make it essentially impossible to decrypt data, no matter how much trickery or brute force the thieves use.Encrypted folders are particularly good if you carry your data around on a laptop. My proposed solution: an encrypted folder, where she could store her most sensitive files.Encrypted data is thoroughly scrambled and can be unscrambled only with the correct password.
![]() Under Encryption, choose AES-128 (the only encrypted option). Choose a maximum size for your folder I use 4.7GB, so even if I fill up the disk image, I can still burn it to a DVD-R. Choose File: New: Blank Disk Image. (You must be running OS X 10.4.)First, launch Disk Utility (/Applications/Utilities). You can then put only the files youNeed to protect into that encrypted folder, while leaving your iTunes and iPhoto libraries, browser cache files, and less sensitive documents alone.Here’s how to create such a folder and set it to open only with the proper password. Centos 610 download for macWhen you’re done with all of that, click on the Save button.Now it’s password time. I called mine Cryptobaby.sparseimage and saved it in my Documents folder. Give your encrypted disk image a name in the Save As field, and choose a storage location on the hard disk. Encrypted Disk Image Not Ag For Software Could FigureIf you don’t like the password in the Suggestion box, click on the down-arrow button to see more. You can create shorter or longer passwords by adjusting the Length slider longer passwords are, obviously, more secure. In the Type menu, select Memorable (it uses combinations of words, numbers, and punctuation that are relatively easy to remember). Doing so will summon Apple’s Password Assistant, which will help you generate a good, strong password. Many of us choose bad passwords—we use obvious words or number sequences that anyone with a bit of patience, intelligence, and password-cracking software could figure out.That’s why you should press the key button next to the Password text box. Your case may be different. In Annie’s case, I suggested she just turn her Work and Personal subfolders in Documents into one encrypted disk image. Since it’s a working folder, not an inactive archive, you’ll be adding files to it all the time. Remember that if you lose the password, you’ll lose the data in the folder.Now that you’ve created your folder, it’s time to put files in it. If you absolutely must, write down the password and store the paper in a secure place away from your laptop otherwise, commit it to memory. You can provide your own passwords Password Assistant will tell you what’s wrong with them in the Tips box. Choose Finder: Secure Empty Trash to make sure they’re really gone.For maximum convenience, you can add the encrypted disk image file to your login items. Once you’ve confirmed that your data is safe yet accessible, you can erase the unencrypted originals (or keep backups somewhere else). Open the files you copied into the virtual disk, to make sure they work properly. Eject and try to remount the virtual disk. Once you’ve figured out which files to include, just open your new disk image and copy them into it.Check that everything works. Subfolders are fine you just want to make sure you have everything you want to protect, and nothing you don’t, in one place. (You could also just drag the file from the Finder into the Login Items tab.) Now, whenever you restart or log in to your account, your Mac will ask for your decryption password once you supply it, the virtual disk will mount. Click on the plus-sign (+) button, select the disk image, and click on Add. To do so, choose System Preferences: Accounts and select the Login Items tab. If you do mount it, you can protect your files by ejecting it at any time—such as when you put your computer to sleep or step away from your desk.Finally, make sure that whatever backup system you have includes your encrypted disk image, and that those backups are stored off-site.
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