1)Download viruses/spyware/adware/worms/windows updates/unwanted porn/glitches/
3)Uploading all of your private information and getting hijacked by everything it downloads.
It seems to be a lot better at the first than the latter.
The best part about Internet Explorer is that it forced companies, such as Mozilla and Opera, to make their own browsers, which completely and utterly blow Internet Explorer out of the water.
Download Opera/Mozilla plz.
IE is buggy, has many security holes, is slow, supports ActiveX so websites can install their XXX dialers on our systems, and finally, it's not standards compliant, so 80%+ web pages have sloppy HTML which doesn't work with standards compliant browsers, only IE. How convenient.