I have started to investigate this. I still do not know if it is the case but I am tending to believe it is.
If you want to investigate it yourself you have to do it with an Android phone in the developer mode, or use the following two apps on an Android.
Bluetooth Scanner or BLE Scanner
1- https://play.google.com/store/apps/details?id=com.pzolee.bluetoothscanner
2- https://play.google.com/store/apps/details?id=com.macdom.ble.blescanner
Here is a video instruction how to set your Android phone in the developer mode.
My telegram channel is in Dutch but ofcoarse you are welcome. t.me/MeBluetooth
I have created an independend webpage where I post video’s and video’s of investigations.
The url is: tinyurl.com/MeBluetooth
