After downloading The Ramadan calendar 2017 in App Store, in the phone is starting to take messages about viruses like this: your phone has 16 viruses in the calendar.
I changed the password, and deleted calendar, but the problem was not decided.
How to decide problem in my phone?
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.
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.
Virus in the phone
