After the much publicised single security weakness discovered in Mozilla last week, Internet Explorer has 4 new ones discovered today. This adds to the pre-existing known security problems with IE.
Mozilla had a patch available for Mozilla and Firefox within 12 hours of the detection of their security issue [a way of using the browser to exploit a fatal security bug in Microsoft Windows itself, rather than a failing on the browsers part]. MS normally takes 2 to three weeks minimum before releasing a security patch.
Only MS IE is that vulnerable!!