I had received an e-mail about this on Saturday. I found this article when I went to my MSN homepage this morning. Apparently, this bug can possibly affect Internet Explorer 6 through Internet Explorer 11.
There was also a suggestion from the Homeland Security for all users of Internet Explorer to use another browser until Microsoft can figure out a way to get it fixed. I just downloaded Mozilla Firefox earlier, and that's the browser I'm using right now. It seems to be working very well with Windows 7 so far. I may decide to start using Firefox as my default browser since this hacking problem has come up.
The article also suggested to not use Adobe Flash in Internet Explorer because it could also be vulnerable to attacks. That's another reason I've switched to Firefox. I still want to be able to watch videos, and without Adobe Flash in IE, it would be impossible to watch them.