Security alerts from my iPhone Calendar for critical leakages
I want to get it confirmed whether this message has been sent by Apple or otherwise
Regards
Nawab Ikramullah Khan
iPhone 12 Pro Max, iOS 14
Question marked as
No, the message is definitely not from Apple. Never download anything based on such bogus messages.
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.