http://www.zdnet.com/ie8-zero-day-flaw- ... 000014908/
read it through, and it all points to the good old boys of Red China back in business
Summary: Security researchers have discovered a previously unreported zero-day attack that targets U.S. government nuclear weapons scientists and researchers. Microsoft has warned Internet Explorer 8 users to upgrade to a later version of the browser, as the potentially affects at most one-quarter of all IE users.
Attackers have exploited a previously unknown vulnerability in Internet Explorer 8, which targets U.S. government workers involved in nuclear weapons research.
According to multiple security research firms, the vulnerability has been used to launch specifically-targeted "watering hole" attacks aimed at U.S. government workers — such as those at the U.S. Department of Labor and the U.S. Department of Energy — the latter which focuses on nuclear weapons research and testing.
The specific site that was hacked, the Dept. of Energy's Site Exposure Matrices (SEM) website, deals with "nuclear-related illnesses" linked to Dept. of Energy facilities of employees who may have fallen ill developing or disarming nuclear weapons, according to NextGov.
It's not clear whether any data was stolen or if classified documents were at risk.