Screen size

Quite often my iPhone 11 Pro Max 17.4.0 my screen will suddenly zoom without any action from me, I keep my zoom setting at 75% and i don’t change it. It will also suddenly change from portrait to landscape without moving the phone. I also have repeated problems with random characters inserted when typing. I went to check my system logs and suddenly gave about 50 pages where it used to be about 8-10. Could these issues be related? I think my phone may be cloned or hacked but don’t know how to check. I know typical response is it is “almost” impossible to hack I phone with latest updates and if that’s the case why are there updates to address security issues almost monthly. That alone says to me they can be hacked! I recently had over 1000$ stolen from my bank electronically so forgive me for being skeptical!