There has been reports that Chinese hackers breached popular news site Forbes.com and used the site as part of a wider attack on the U.S. defence and financial industry. Commenting on this, Szilard Stange, director, OPSWAT said:
“Every programmer has their own programming style. Using a few hundred lines of source code or the compiled binaries, one can have a good guess whether those programs made by the same developer or not. If iSight had been tracking that Chinese group, that means they probably have analyzed many exploit code and malware samples from that specific group. Of course this doesn't mean that the group is Chinese. However no one is perfect, so during the last 4-5 years members of that group could made one or more mistakes to reveal some information that can be used to conclude the origin of the group. The actual malware sample contains Chinese resources and uses Chinese sites, but theoretically these could be inserted to divert attention from the original author. So this information can be misleading, which means that we don't have definitive proof. All information regarding to the origin of the group is just a speculation."