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]
Option-Click AirPort Menu for Network Details
If you hold down the Option key while clicking the AirPort menu in Mac OS X 10.5 Leopard, you'll see not just the names of nearby Wi-Fi networks, but additional details about the selected network. Details include the MAC address of the network, the channel used by the base station, the signal strength (a negative number; the closer to zero it is, the stronger the signal), and the transmit rate in megabits per second showing actual network throughput. If you hover the cursor over the name of a network to which you're not connected, a little yellow pop-up shows the signal strength and type of encryption.