Apple recently released their new iOS 11.4.1 software update, the update mainly includes some bug fixes and also some performance improvements.
Included in the iOS 11.4.1 software update is Apple’s new restricted USB mode which stops some hacking devices like the GrayKey Box breaking into the device, have a look at the video below.
The update also include a bug fix for a problem which stopped some users from seeing the last location of their AirPods in Find My iPhone. There is also some improvements for Exchange accounts.
The latest version of Apple’s iOS 11.4.1 software is now available as an over the air update, you can download the update by going to Settings > General > Software Update.
Source Everything Apple Pro