Warning to Internet Explorer 4.0 Users: When the countdown clock below reaches zero a file will be created on your hard drive called C:\badfile.bat. If a file called C:\badfile.bat already exists on your machine then it will be overwritten with garbage.

This is a serious security breach because:

• There doesn't need to be a countdown - we just stuck in a countdown to give you a chance to turn back. This attack could be made completely silent, completely automatic, and completely instantaneous.
• This method could have been used to corrupt any file on your hard drive. In attempting to downplay past bugs, Microsoft has pointed out that a malevolent hacker would need to know the name of a file on your system in able to use/destroy it. However, there are certain files (such as C:\autoexec.bat) which almost all Windows users have and which would have devastating effects if erased or corrupted.