“Oh what a tangled web we weave….” (Sir Walter Scott)
This is a good lesson in privacy, from the top down. When the Cops have it, the Crooks have it! IMSI/IMEI Interceptors, direct from Alibaba. 3G/4G? How many units you want? There’s all kinds of different models with different capabilities there. Here’s one: https://www.alibaba.com/product-detail/Nigeria-New-Security-System-Mobile-Phone_60256958833.html?spm=a2700.7724838.0.0.IWxH6g
Get the competitive edge. Park yourself outside your competitor’s office with one of these babies!
Now, armed with clue, get yourself a secure text and phone App. I recommend Signal from Moxie’s WhisperSystems. It is an easy-to-use replacement for the Messenger App on your phone. In fact, its so simple, even I can use it! I’ve tested it with both iPhone and Android devices.