Earlier this week Microsoft announced yet another IE (Internet Explorer) bug. This one, Microsoft Security Advisory 977981, is one of the really bad ones that can allow attackers to take your Windows PC over. Yuck!
Microsoft is working on a fix, but there still isn't one, and worse still, there are already several attacks out there that can exploit this IE security hole.
This particular problem hits IE 6 and 7. If you have Internet Explorer 8, which is what comes on Windows 7, you're safe from this one.
The smartest thing to do though is to dump IE 6, which even Microsoft wants you to do, or IE 7 for another browser. While IE 8 is the best of the IE family, historically, IE has a lousy security track record.
I think your best move to keep the world from sneaking in some malware over your browser is to get the latest versions of Firefox 3.5.5 or Google's Chrome 3.0.x Web browser. Neither is perfect, but they are better than IE. I wish I could recommend Opera, but I continue to have real concerns about Opera's built-in Web server security.
Regardless of which browser you choose, do yourself a favor and move off IE 6 or 7. Any other browser will do a better job of protecting you from an increasingly hostile Web.