Enlarge (credit: Steve McDowell / Agefotostock ) In late May, researchers drove out a team of China state hackers who over the previous seven months had exploited a critical vulnerability that gave them backdoors into the networks of a who’s who of sensitive organizations. Barracuda, the security vendor whose Email …

Enlarge (credit: Getty Images ) A critical vulnerability patched 10 days ago in widely used email software from IT security company Barracuda Networks has been under active exploitation since October. The vulnerability has been used to install multiple pieces of malware inside large organization networks and steal data, Barracuda said …