Apple Now Sending Critical Security Alerts to iPhones Running iOS 17 and Earlier

Apple has begun pushing Lock Screen notifications to iPhones and iPads running older versions of iOS and iPadOS, warning ...
Mactrast

Expect a Critical Security Alert If Your iPhone Is Running iOS 17 or Earlier

If you own an iPhone or iPad running an older version of iOS or iPadOS, you'll likely see a Lock Screen alert from Apple urging you to update to a newer version of your device's operating system to ...