Canadians find vast computer spy network: report

In a report provided to the newspaper, a team from the Munk Center for International Studies in Toronto said at least 1,295 computers in 103 countries had been breached in less than two years by the spy system, which it dubbed GhostNet.

Embassies, foreign ministries, government offices and the Dalai Lama's Tibetan exile centers in India, Brussels, London and New York were among those infiltrated, said the researchers, who have detected computer espionage in the past.

They found no evidence U.S. government offices were breached.

The researchers concluded that computers based almost exclusively in China were responsible for the intrusions, although they stopped short of saying the Chinese government was involved in the system, which they described as still active.

"We're a bit more careful about it, knowing the nuance of what happens in the subterranean realms," said Ronald Deibert, a member of the Munk research group, based at the University of Toronto.