https://techcrunch.com/2018/06/13/apple-confirms-that-it-will-seal-up-law-enforcements-favorite-iphone-cracking-method/

A new version of iOS will block a controversial loophole that law enforcement agencies have leveraged in order to crack into locked iPhones. In an upcoming version of iOS (likely iOS 12), Apple will include a feature known as USB Restricted Mode, which limits access to a locked iPhone through its USB port.

The feature previously appeared in the iOS 11.3 beta, making its way into the iOS 12 beta; now the company has confirmed the security patch will make it into a final iOS release. With USB Restricted Mode, an iPhone’s Lightning port will lock one hour after the phone is locked. In that mode, which will be the default, only charging will be possible through the port after the initial one hour period has expired.