Microsoft has just released a number of very important security updates. There are three critical updates affecting Microsoft Office and one for Internet Explorer that should be installed on all computers ASAP. As usual, some of these vulnerabilities are already being exploited, so the sooner you can install the patch the sooner you will be protected. You will required to restart your computer before the updates take effect.
The Office patches also affect Office 2004 for Mac. The fix can be found in the Microsoft Office 2004 for Mac 11.3.5 Update.
For more information about patching and keeping your computers up to date, see my first Patch Tuesday blog entry.