ComputerWorld published this article at the end of April. They admit that Macs are safer for several reasons, but also say that there are several “holes” in the safety net and gives us ways to make them even safer.
Ryan Faas wrote the article. He does provide a lot of detail that I won’t go into here, you really should read the full article. It could even be the basis for a MUG meeting.
1) Disable automatic opening of “safe” downloads in Safari
2) Install antivirus software, a good open-source option is the Unix-based ClamAV (which works with Mac OS X but is command-line based) and its Mac graphical user interface port ClamXav.
3) Don’t allow remote guest access or enable Leopard’s guest account
4) Disable the guest account.
5) Use secure passwords
6) Disable automatic log-in
7) Don’t display usernames or password hints at log-in 
Set a firmware password
9) Use the Security pane options in System Preferences
10) Disable unused network interfaces
11) Make use of encryption options (This one I don’t like as it can create other problems. – lcw)
12) Encrypt your home folder with FileVault
13) Use Disk Utility to create an encrypted disk image
14) Use Keychains for passwords, certificates and encrypted notes
15) Get the most out of Leopard’s firewall
He goes on to talk about other options such as disabling Bonjour. But you really should read the article yourself.
