Why?
Two security holes already being used to attack devices are fixed with iOS 15.6.1.
Action Needed
WPI Information Security recommends performing the upgrade immediately. Instructions are in Details, and the Apple notification is in Actions.
Details
iOS 15.6.1—Update Now Warning Issued To All iPhone Users
Apple has released iOS 15.6.1, along with a warning to update now, because it fixes two security holes already being used to attack iPhones. The iOS 15.6.1 upgrade provides important security updates and is recommended for all users. The notification from Apple Support is linked in Actions.
The iOS 15.6.1 and iPadOS 15.6.1 updates can be downloaded for free and the software is available on all eligible devices over-the-air in the Settings app. To access the new software, go to Settings > General > Software Update.