Mandiant's in-depth report published last month on a prolific cyberespionage team tied to the Chinese military was, in turn, used as a lure in other targeted attacks -- by what appears to be different Chinese hacker groups.

The attacks, spotted by Seculert, used a phony version of the report as a lure in a spear phishing attack against Japanese and Chinese journalists. The targeted attack against the Japanese victims came with an interesting twist: a "time bomb" element, according to Aviv Raff, CTO at Seculert.

Mandiant's report calls out the People's Liberation Army Unit 61398 as the APT1 group responsible for cyberspying against multiple industries.