Symantec has kept close tabs on the hackers behind the so-called Aurora attacks ever since. No other group has used more zero-day vulnerabilities – eight – to further their malicious goals than the attackers behind Aurora (Hydraq) and other related attacks, the researchers said. Previous unknown vulnerabilities leveraged by the group have included Internet Explorer and Adobe Flash security bugs.
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http://www.theregister.co.uk/2012/09/10/elderwood_cyberespionage/