Answer for HELP!!! Pop up window

You’re on an iPhone so unless you jailbroke your iPhone, there’s no way anyone could hack into your phone. The symptoms you describe sounds like the scam I wrote about. Your WiFi probably isn’t hacked. Even if it was, that wouldn’t make it possible to hack into your iPhone. So the bottom line is rest easy and move on with your life. It was just a scam. Fear is their weapon. Don’t let them win.