Forwarded messages like this are seldom true. Most of them are jokes or scams. I believe if something like this would be true you would be able to read something from an not anonymous source about it.

On the other hand I really do not give a sh** if someone is monitoring my phone (of course I do also believe this is unnecessary and false). The thing is if certain people wanna know every single aspect of your live there is nothing you can do to prevent that so why bother about that stuff then if you are not able to change it.