For any electronic device of your choice, search for its manual and look for this notice: "This device complies with part 15 of the FCC Rules. Operation is sub

For any electronic device of your choice, search for its manual and look for this notice: "This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation." Everything is backdoored, absolutely everything: your hardware, your firmware, the compiler used to build your software, your software, libraries used by your software, your network infrastructure, your crypto, your sources of entropy, the machines you communicate with, everything.