A well-resourced hacking group is using a previously unknown and unpatched bug in Internet Explorer (IE) to infect Windows PCs with malware.

Researchers at Qihoo 360’s Core security unit say an advanced persistent threat (APT) group is using the IE vulnerability on a “global scale”, which is being delivered to select targets via malicious Office documents loaded with it calls a “double-kill” vulnerability…

Read more: Internet Explorer zero-day alert: Attackers hitting unpatched bug in Microsoft browser | ZDNet