They claim that every smart phone is a bug, on or off the golf course.
Well, a smart phone can be a bug if its firmware has been altered.
The government has access to the source code for cellphones and smart phones...this is certain. The reason it is certain is that you must have that source code to modify a smart phone to add ECC/AES public key encryption abilities to the phone. With that level of encryption the phone becomes as secure as the older STU3 secure phones. You see government officials using smart phones all the time, even the president has one. These phones are secure.
Another thing you can do with access to the source code is operate a smart phone out-of-band. An encrypted smartphone moved out of the cellular bands becomes an instant satellite phone that can operate using the array of NRO satellites.
A smartphone is an incredibly complex and powerful device.
It is a combination of a powerful ARM based computer linked to a software defined transceiver with audio, video and data functions.
some golf courses have rats