John Markoff And David Barboza Nyt News Service

Turning the tables on a China-based computer espionage gang, Canadian and United States computer security researchers have monitored a spying operation for the past eight months, observing while the intruders pilfered classified and restricted documents from the highest levels of the Indian Defence Ministry.

Turning the tables on a China-based computer espionage gang, Canadian and United States computer security researchers have monitored a spying operation for the past eight months, observing while the intruders pilfered classified and restricted documents from the highest levels of the Indian Defence Ministry.