I have noticed from time to time that some messages are sent without my knowledge, although I definitely did not write them. I suspect that someone may be monitoring my actions through my phone. I would like to understand how to determine if I am being monitored. What steps should I take to completely protect my device from third-party interference?
It looks like someone has installed spyware on your phone. The first thing you can do is check your battery, data traffic and, of course, your processor. Constant delays or lags may indicate hidden apps signs you are being monitored. I also recommend checking which apps are using permissions, access to the camera and microphone.