Apple has released Security Update 2007-004, which fixes a wide variety of obscure security holes and includes new versions of several open source components of Mac OS X, including fetchmail and ftpd. Of particular interest are fixes to Mac OS X's file sharing client software, the elimination of several bugs identified by the Month of Apple Bugs project, and fixes for holes in the Login Window authentication dialog. Academic users should also note that Security Update 2007-004 addresses three different exploits aimed at the Kerberos secure authentication support in Mac OS X. The update is available in four versions, for Mac OS X 10.4 for PowerPC-based Macs (9.3 MB) and for Intel-based Macs (16.1 MB), and for Mac OS X 10.3.9 Client (37.6 MB) and Server (54.1 MB). Or just let Software Update do the job for you.
Beware Country-Specific iTunes Stores
If you buy an iPhone, iPod touch, or iPad, and you happen to be a user of the iTunes Store in more than one country, take note which country's store you're viewing in iTunes when you plug in the device for the first time. This will be the country the device will register with, and you will be forever barred from purchasing or even updating free apps from anywhere else. The only way out is to delete everything on the device and do a full restore.
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