Apple has released a security update that protects iChat users from malicious applications.

The iChat update means that remote iChat participants can no longer send links that can start programs running if clicked. Instead iChat has been modified so that links of this type will open a Finder window that displays the program instead of running it.

According to Apple, Security Update 2004-09-16 delivers a number or security enhancements recommended for all Mac users.

Three versions of the update are available: Mac OS X 10.3.5 and iChat 2.1; OS X 10.2.8 and iChat AV 2.0; and OS 10.2.8 and iChat 1.0.