Apple has released Security Update 2013-002 for Mac OS X 10.6 Snow Leopard and 10.7 Lion, with each operating system getting two versions: Snow Leopard (329.85 MB) and Snow Leopard Server (404.83 MB); and Lion (57.69 MB) and Lion Server (105.61 MB). Several of the security changes are the same as those added to the just-released update to Mountain Lion (see “OS X 10.8.4 Mountain Lion Finally Fixes Messages,” 5 June 2013), which shares its security overview page with the 2013-002 security updates. (Be sure to look at the “Available for” line under each of the changes to see if it pertains to your system.) Across all the big cats, the security updates close vulnerabilities related to OpenSSL and QuickTime, while Snow Leopard gets targeted fixes for vulnerabilities in Directory Service and Ruby on Rails. (Free)
Extend Mac OS X's Screenshots
Mac OS X has a variety of built in screenshot methods. Here's a look at a few that offer more versatility than the basic full-screen capture (Command-Shift-3):
• Press Command-Shift-4 and you'll get a crosshair cursor with which you can drag to select and capture a certain area of the screen.
• Press Command-Shift-4-Space to select the entire window that the cursor is over, clicking on the window will then capture it. The resulting screenshot will even get a nice drop shadow.
• Hold down the Space bar after dragging out a selection window to move your selection rectangle around on the screen.
• Hold down Shift after dragging out a selection to constrain the selection in either horizontal or vertical orientation, depending on the direction of your drag.
• Hold down Option after dragging out a selection to expand the selection window around a center point.
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