There has been a recent flaw in IE, that I stumbled across via a DevShed newsletter. Yes, another one, this time from hackers in Russia. A google search turns up this page with a few up-to-date articles about it. Of course, the most prominent is displayed at the top: US Government Slams Microsoft Explorer.
Yes, you read that right. The US Govt, or more specifically CERT ( Computer Emergency Readiness Team ) is cautioning users to use a different browser, ANYTHING at all as long as it isn't IE. Apparently, this latest hole allows hackers to upload a small Javascript file onto an IIS webserver ( again, Microsoft software ) and change the server config to append this Javascript to the end of every page served. This Javascript, in turn, downloads a trojan from a repository off of a Russian site that can log keystrokes, steal identification, etc. Here are some sites for your reading pleasure:
http://www.ecommercetimes.com/story/34868.html
http://www.macworld.co.uk/news/index.cfm?N...age=1&pagePos=5
http://www.nbc11.com/technology/3468874/detail.html
http://www.chron.com/cs/CDA/ssistory.mpl/business/2648149
http://sarc.com/avcenter/venc/data/js.scob.trojan.html <- A Symantec evaluation of the Trojan
http://www.eweek.com/article2/0,1759,1617551,00.asp
http://www.abc.net.au/news/newsitems/200406/s1141082.htm
The last link here is an appeal from a writer at eweek to switch browsers: http://www.eweek.com/article2/0,1759,1617927,00.asp