What I have to do if my device is hacked since I had received massages in my calendar??
iPhone 11 Pro, iOS 14
Your device is not hacked. If you are seeing spam information in your calendar, it is because you inadvertently clicked on a spam subscription. See this for removal. Remove spam from Calendar on your iPhone - Apple Support
You got tricked into installing a rogue calendar; your phone does not have a virus.
If your phone has iOS 13 or earlier: Go to Settings/Passwords & Accounts, look under Subscribed Calendars, tap on the offending calendar and delete it.
If your phone has iOS 14: Go to Settings/Calendar/Accounts, look under Subscribed Calendars, tap on the offending calendar and delete it.
And in the future beware of "free" offers
Apple phone never hack bro but some software issue is all time so check software
My device is hacked
