[ac4tw]

Great article @prostoalex--gets excellent 1/2 way in with the details I was looking for.

Esp. interested in more on this:

'A major concern was that Russian spies with physical proximity to sensitive U.S. buildings might be exfiltrating pilfered data that had “jumped the air gap,” i.e., that the Russians were collecting information from a breach of computers not connected to the Internet, said former officials.

One factor behind U.S. intelligence officials’ fears was simple: The CIA had already figured out how to perform similar operations themselves, according to a former senior CIA officer directly familiar with the matter. “We felt it was pretty revolutionary stuff at the time,” the former CIA officer said. “It allowed us to do some extraordinary things.”'

[alexfromapex]

Seems like it should’ve been classified and not something they should’ve admitted in an interview