Google's Threat Analysis Group has recently discovered the security flaw of iPhone and iPad. Hackers have started exploiting that error. Which has an impact on Apple's WebKit browser engine.
That's why Apple has released security updates for the iPhone and iPad operating systems on an emergency basis. The iPhone will be available as iOS 14.4.2 and the iPad as iPadOS 14.4.2.
An updated version has also been released on older Apple devices due to security concerns. The company has released iOS 12.5.2 versions for the iPhone 5S, iPhone 7, iPhone 6 Plus, iPad Air, iPad Mini 2, iPad Mini 3 and the sixth generation iPod Touch.
Apple says if you have any of the above devices, then quickly update the software. For this you have to go to General> Software Update from iPhone and iPad settings. It can be updated from there.