I've recently noticed that my phone received a strange SMS from sender called "wap_push_si!".
Anyway, I've been using CyanogenMod with Google's default Messenger (not Hangouts) app - and can't seem to find a way to disable those messages. They even don't really appear in the Messenger app's messages list, but I've noticed them using Android API to read my device's messages (where they seem to be empty).
So, my questions are:
- What are these messages really for?
- How (or should) can they be disabled in Google Messenger app / CyanogenMod?
- Can it be related to my phone sometimes losing cellular-data connection (but can still send/receive sms and calls)?
- If there's any link inside this special kind of message, might it be automatically opened (without any user interaction), thus compromising the phone?