China and Russia are putting their recent technological advances in raw computational power and big data analysis capabilities to work identifying, cross referencing, and compiling individual dossiers on members of the U.S. intelligence community operating in their countries. The data itself was stolen in a series of devastating hacks of public and private U.S. enterprises, ranging from the U.S. Office of Personnel Management, to Anthem Healthcare, to the Ashley Madison married dating website.

According to comments in the Los Angeles Times by William Evanina, the Director of the National Counterintelligence and Security Center, China and Russia have been looking at a range of data to determine:

who is an intelligence officer, who travels where, when, who’s got financial difficulties, who’s got medical issues, [to] put together a common picture[.]

Evanina also said foreign intelligence services had “absolutely” already used the data against American operatives, but that the nature of that usage is classified. ┬áThe treasure trove of sensitive information includes sensitive data from recent hack targets including:

  • A network of U.S. engineers and scientists who provide assistance to undercover operatives.
  • The U.S. Office of Personnel Management, which had its systems breached earlier this year when hackers likely tied to China stole OPM files containing information on 22 million U.S. security clearance applicantions.
  • The U.S. Joint Chiefs of Staff, one of whose unclassified email servers was hacked in July by Russians linked to the Kremlin.