Akademik

n.

A spy who emigrates to another country, spends many years living a normal life under an assumed name, and then begins spying once he has worked his way up to a sensitive government or corporate post.

"Pentagon officials told a congressional committee last year that the Chinese are planting 'sleepers' — deep cover agents — in U.S. high schools with the intention of getting them into leading universities such as the Massachusetts Institute of Technology, and from there into high-tech industries."

— Jeff Sallot, "Spying comes in from the Cold War," The Globe and Mail