Patch your boxes

If you even come into passing contact with a Windows box, take a few minutes to visit first Windows Update and then Office Update to install the latest critical patches for your system. There are some truly nasty holes that were patched today, and I'm sure at least one of them will be ripe for a worm soon. The TCP/IP stack, Windows/MSN Messenger, and even Microsoft Word all have "critical" security flaws in them, so get patching!