Well I suppose we don’t have enough information to determine whether it was put there intentionally or not. I recall from the Snowden leaks that the US has a we

Well I suppose we don’t have enough information to determine whether it was put there intentionally or not. I recall from the Snowden leaks that the US has a well established program to maintain access to as many foreign networks as possible. A cozy arrangement with Cisco and/or a National Security Letter might help ensure such access is possible. https://www.aclu.org/other/national-security-letters https://www.aclu.org/other/national-security-letters