Apple's Mac Pro Audio Update 1.0 for early 2009 Mac Pro models comes only with terse release notes, stating that the update "reduces processor utilization during audio activities such as playing or recording music." More information regarding installation steps is available on Apple's Web site. The update is available via Software Update and the Apple Support Downloads page. (Free, 1.64 MB)
Find Which Applications Phone Home with VirusBarrier X6
Worried about rogue applications or spyware "phoning home" with your private data? Turn on VirusBarrier's Anti-Spyware feature, and it will alert you to applications that attempt to connect to remote servers. Once you know which apps are phoning home, you can block or allow each individually, and you can even block or allow specific ports for each application, to ensure that your private data stays private.