China may have penetrated CIA covert communication system: US Intelligence officials
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US intelligence officials are unsure whether the US was betrayed by a mole within the CIA or whether the Chinese hacked a covert system used by the CIA to communicate with foreign sources as New York Times has reported that China has killed or disappeared 20 CIA informers from 2010 to 2012.
Of the damage inflicted on what had been one of the most productive US spy networks, however, there was no doubt: at least a dozen CIA sources were killed between late 2010 and the end of 2012, including one who was shot in front of colleagues in a clear warning to anyone else who might be spying, the Times reported.
In all, 18 to 20 CIA sources in China were either killed or imprisoned, according to two former senior American officials quoted. It was a grave setback to a network that, up to then, had been working at its highest level in years.
Those losses were comparable to the number of US assets lost in the Soviet Union and Russia because of the betrayals of two infamous spies, Aldrich Ames and Robert Hanssen, the report said.
Western espionage services have traditionally found it exceptionally hard to develop spy networks in China and Russia.
The CIA's mole hunt in China, following the severe losses to its network there, was intense and urgent. Nearly every employee of the US Embassy in Beijing was scrutinized at one point, the newspaper said.
Meantime, then-president Barack Obama's administration was demanding to know why its flow of intelligence from China had slowed.
The revelations come as the CIA seeks to determine how some of its highly sensitive documents were released two months ago by WikiLeaks, and the FBI examines possible links between the Donald Trump campaign and Russia.
Both the CIA and the FBI declined to comment.
