If you use Trillian for Instant Messaging, you'll want to download the latest Security Patches. If you don't use Trillian for Instant Messaging... you should consider it.

Trillian is an Instant Messaging client that allows you to interoperate between all major instant messaging networks. That means that if you have friends/family/co-workers on mulitple networks, you only need one program running! Trillian supports AIM, Yahoo, MSN, ICQ, IRC and if you have the Pro version, then you can get plugins to support other networks like Jabber or Lotus SameTime. What more could you ask for?