When going to my calendar on my starting at 3pm it says "Your iphone is not protected click here to protect it" and then at 4pm it says "your information is in danger" and then at 5pm is says Your information is not safe" and etc? Has anyone had this happen to them?
Click “Calendars” at the bottom center of the Calendar app display. Remove calendars that are not familiar.
Recognize and avoid phishing messages, phony support calls, and other scams - Apple Support
Delete spam calendars and events on iPhone - Apple Support