Rolling the security changes in Mac OS X 10.7.3 Lion back into 10.6 Snow Leopard, Apple has released Security Update 2012-001 and Security Update 2012-001 Server, both exclusively for Snow Leopard. The fixes relate to vulnerabilities in Apache, ATS, ColorSync, CoreAudio, CoreMedia, CoreText, curl, dovecot, filecmds, ImageIO, libresolv, libsecurity, OpenGL, PHP, QuickTime, SquirrelMail, Subversion, Tomcat, and X11. Plus, Mac OS X will no longer trust SSL/TLS certificates issued by DigiCert Malaysia, which has issued certificates with weak keys that it cannot revoke. The 1.0 versions of these releases caused crashes with PowerPC-based programs running under Rosetta; the 1.1 releases resolved those problems. (Free, 192.73 MB/212.09 MB for Snow Leopard/Snow Leopard Server)
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.)
Security Update 2012-001 v1.1 (Snow Leopard)
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The v1.1 update to the Security Update should resolve the problem.