Do you think Internet Explorer is unsafe? why?

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I feel and backed by the following excerpts, I can say that the microsoft internet explorer is NOT safe:Ms. Sandlin is so devoted to[Firefox] that she has taped a note to her monitor warning guests not to click on the desktop shortcut to Internet Explorer. Do not touch the blue ‘E!’ the note says.- NEW YORK TIMES The security researchers are reporting a new vulnerability in XP SP2 that could allow a malicious Web site to deposit an attack program on a user's system.The attack utilizes Internet Explorer's drag-and-drop features and the Windows "shell folders" to copy an executable from a malicious Web site to a user's startup folder, from which it would execute the next time the user logged on.-EWEEK Do you also agree with me? Recently I lost 'all' may data that was saved on my P.C. Its was very frustrating and now I've installed Norton security system. Have you also suffered from problems through internet explorer? Do you think some hacker may be skimming through your confedential data online? What you have to say? Please share your bad experiences and how you rectified it.