Security Update 2003-03-03 -- In an effort to stay up to date with security improvements on the Unix front, Apple has also released Security Update 2003-03-03, which provides a new version of sendmail that closes a hole which could allow a cracker access to the system. It wasn't a serious problem for most Mac users, since sendmail is off by default. Also updated was OpenSSL, the new version of which provides improved data confidentiality. Since the sendmail problem affects Mac OS X 10.1.5 as well as 10.2.4, there's a variant of the update for those Mac OS X users who haven't updated to Jaguar. The Jaguar version of the update is a 1.7 MB download; the 10.1.5 version is a 705K download. [ACE]
Mac OS X Zip Expanding Utility
Firefox (and possibly other applications) may ask you what you want to do with .zip archives that you download from the Internet. If you want to expand them with Mac OS X (rather than StuffIt Expander), you may be unsure of which application actually does the job. You're looking for Archive Utility (in Leopard and later) or BOMArchiveHelper (in Tiger). In either case, the application is stored in Hard Drive/System/Library/Core Services/. Don't move it from there, though, or you'll confuse matters.