Thoughtful, detailed coverage of the Mac, iPhone, and iPad, plus the best-selling Take Control ebooks.

 

 

Pick an apple! 
 
Cull Graphics Quickly with Preview

You're faced with a folder full of images, and you need to sort through them, trashing some number and keeping the rest. For a quick way to do that, select them all, and open them in Preview (in Leopard, at least). You'll get a single window with each graphic as an item in the drawer. Use the arrow keys to move from image to image, and when you see one you want to trash, press Command-Delete to move it from its source folder to the Finder's Trash. (Delete by itself just removes the picture from Preview's drawer.)

 
 

FileVault 2 Hides Data in Plain Sight

Send Article to a Friend

Apple significantly improved how your Mac’s vital data can be protected in Mac OS X 10.7 Lion by taking the FileVault encryption system that covered only user directories and expanding its scope to full-disk encryption. FileVault 2 encrypts the entire contents of your startup disk (the boot partition, that is). When you start up a Mac with FileVault 2 enabled, you’re actually booting from Lion’s Recovery HD partition; when you enter an account’s login name and password (one you previously enabled as being accessible to the FileVault login), the boot process activates the encryption key used to protect the startup partition, and off you go.

I recently wrote at length about using FileVault 2 for Macworld, detailing the risks involved and how to prepare before turning on encryption. I also explained how to encrypt non-boot partitions and drives using Disk Utility and the command line in Terminal.

After I wrote that article, Apple released Mac OS X 10.7.2, which includes iCloud support and the Find My Mac service. With the help of a commenter, I discovered — and documented in a second article at Macworld — that using FileVault 2 in conjunction with a new Guest User account option at startup could trick a laptop thief into connecting to a Wi-Fi network and revealing the Mac’s location. In fact, just powering up the system will do the trick. In short, Apple has crafted a honey pot to lure thieves into Find My Mac’s net.

 

READERS LIKE YOU! Support TidBITS by becoming a member today!
Check out the perks at <http://tidbits.com/member_benefits.html>
Special thanks to Brian Gibb, Michael House, David Blatner, and Duane
Stevens for their generous support!
 

Comments about FileVault 2 Hides Data in Plain Sight
(Comments are closed.)

LCPGUY  2011-11-18 09:55
How much does it slow down your Mac?

So far I've had good luck with protecting my data via encrypted sparse disk images. Shoud I still consider FileVault for my iMac?
Glenn Fleishman  An apple icon for a TidBITS Staffer 2011-11-18 18:02
I've been running it on an Air for several weeks and I can't see any pattern of slowdown. I have not run benchmarks. Encryption is handled entirely through specialized circuitry unlike the old days.