https://wccftech.com/how-to-use-ios-usb-restricted-mode/

Following up with its announcement of the USB Restricted Mode, Apple has today released the feature with iOS 11.4.1 months ahead of its planned release with iOS 12. This new feature keeps the iOS devices safe against being accessed by hackers or law enforcement by limiting the use of the Lightning port.

“We’re constantly strengthening the security protections in every Apple product to help customers defend against hackers, identity thieves and intrusions into their personal data,” Apple had said in its statement. “We have the greatest respect for law enforcement, and we don’t design our security improvements to frustrate their efforts to do their jobs.” But frustration is exactly what it has caused for the cops – and criminals.