Since it gives iPhone owners additional security tools and patches, the update is essential. 

One recent update gives you the option to disable the lockscreen's ability to let people go through your contacts.

According to TechRadar, the risky flaw resulted from Apple's choice to enhance lock screen customisation in iOS 16.

Since then, Apple has worked to fix this flaw as well as others that allowed users to unlock their iPhone

The privacy of users is no longer at risk when they download iOS 16.5 as a result of these problems.

Additionally, iOS 16.5 applies security updates for WebKit, the browser engine that powers Apple's Safari app.

 when the company switched the 30-pin connector to an 8-pin Lightning port.