Virus
good afternoon , a virus has appeared in your calendar application (((ads with game bets are constantly coming out ((( can your system now be hacked ???? how did this happen??? I can't delete it !!!!
iPhone 8 Plus, iOS 14
Question marked as
If running iOS 13 or earlier versions, check: Settings - Passwords & Accounts - Accounts - Any rogue entries here? If so, delete the rogue account.
If running iOS 14, check: Settings - Calendar - Accounts - Any rogue entries here? If so, delete the rogue account.
The Apple support article is below.