A sophisticated piece of spyware has been quietly infecting hundreds of government computers across Europe and the United States in one of the most complex cyberespionage programs uncovered to date.
Several security researchers and Western intelligence officers say they believe the malware, widely known as "Turla," is the work of the Russian government and linked to the same software used to launch a massive breach on the U.S. military uncovered in 2008.
It was also linked to a previously known, massive global cyberspying operation dubbed "Red October" targeting diplomatic, military and nuclear research networks.