iOS question

[bj097]

Hello. I've just got a new iPhone, however, I haven't used iPhone for many years so I am now like a newbie.

My question is
1. Notification. I always like locked screen notification so I can have a quick preview of any news, but sometimes I just keep the notification and don't remove it. If my phone is lost or stolen, can I have those notification disappear from the locked screen by itself?

2. If my phone is lost or stolen, is it possible that someone could crack or bypass the faceID or digit passcode? If the theft forgets to take out the cellular data SIM, can I remotely delete everything from my phone? And how?

3. If my phone is lost or stolen, can I restore EVERYTHING including the chat history from a not very common social Apps like those only widely used in Asia or Russia?
Will there be anything loss for uncommon or non-universal Apps?

4. What is the meaningfulness of Find My Phone when the phone is lost or stolen, the theft can remove the SIM card or hide the phone, this is something I always don't understand. Or if I have overlooked something?

 

[BugeyeSTI]

A good 8-10 digit alpha-numeric passcode will make sure anyone who steals the phone won’t be able to use it. Faceid has a one chance in a million that someone’s face can unlock the phone so unless they are your identical twin they aren’t unlocking your phone that way either.. You can remove notifications from the lock screen in settings/notifications/show previews. If someone steals your phone and removes the sim card and you have a passcode like I suggested, the phone will be usless to them. They can still tear the phone apart and sell the parts but, the logic board is worthless...