Apple today released Security Update 2004-05-24 to address a possible vulnerability in the Help Viewer application. The update is available for both Mac OS X 10.3 (Panther) and Mac OS X 10.2 (Jaguar) via the Software Update preference pane. It is not known if the update includes any other changes. “Apple takes security very seriously and works quickly to address potential threats as we learn of them-in this case, before there was any actual risk to our customers,” said Philip Schiller, Apple’s senior vice president of Worldwide Product Marketing. “While no operating system can be completely immune from all security issues, Mac OS X’s UNIX-based architecture has so far turned out to be much better than most.”