How do you know that Apple's mobile phone is being monitored?

The first one is: I didn't sell my mobile phone in the store, or I lost it and got it back (something was probably transplanted). The second is that mobile phones sometimes get stuck and are not responsive. Third: there will be some numbers in the phone address book that you don't know at all.

Fourth, the cost of calling has soared (that is, if you send a text message or receive a text message, it will be sent to the "monitor"). Fifth, the SIM card has been connected to the third-party calling service. Seeing these situations, you may want to ask, what should you do? Don't worry, I'll tell you what to do at two o'clock.

First, you should strengthen your safety awareness, that is, don't download some irregular software or install some unclear applications. The second way is "virtual positioning" to confuse the display.

In fact, as long as your mobile phone is turned on, it will connect with the information of the base station and then identify the SIM card, so even without the SIM card, others can only say that they can't directly monitor you, but they will track you by indirectly connecting with the ID of the mobile phone or where to turn it on.