Couple of key security things...

There's a recent security issue/vulnerability for the WVC-54GC. It's a camera.

Source: 10 Dec 08 Security Now Webcast

It involves on OCX exploit - receiving a UDP packet on port 916 causes the router to send all our your private information, logon credentials, usern/pw, wireless networking connection information including WEP and WPA keys in plaintext. Could be exploited to gain access to all of your wireless network assets.

Fix: Update to firmware version 1.25, which came out on Jan 3, 2008.

Moral of the story: Keep your firmware updated!

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Microsoft:

19 critical vulnerabilities in the most recent Windows Vista security update - it's a Megapack

Windows Search service has some remote code execution vulnerabilities. Personally, I would recommend against downloading/installing this "feature."

By the way, Microsoft releases security patches every second Tuesday of the month. Non-security patches every last Tuesday of the month, except for December.

Recommend download and notify, but not install. On occasion, some releases can conflict with apps - particularly important for corporate applications.

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If you use Trillian, upgrade to 3.1.12.0. Without it, you may have a trillian Message problem. Trillian's receipt of an IM can cause code to be executed in your machine. The upgrade fixes a handful of problems, including a zero-day problem.