The National Security Agency has had agents in China, Germany, and South Korea working on programs that use “physical subversion” to infiltrate and compromise networks and devices, according to documents obtained by The Intercept.
more here...........https://firstlook.org/theintercept/2014/10/10/core-secrets/
more here...........https://firstlook.org/theintercept/2014/10/10/core-secrets/