Remember Google cyber attack happen in China last week ? They discovered that hackers are use IE zero-day in China-Google attacks.Microsoft advised temporary stop using IE before issue an emergency security update for Internet Explorer (IE).Now microsoft already issue out IE patch,KB979352.
More information can refer here and download KB979352 with double click Microsoft fix it icon ( Enable Application Compatibility Database )
Moreover,you can read through this
article how the hackers using IE having Google cyber attack (attached with video explanation).Please update your IE patch.
PS: Another new IE patch ( KB 978207 ) issued out.