Apple has rolled out a new security feature designed to protect your devices against USB accessories that connect to the Lightning port. The feature automatically disables data connection capabilities of your iPhone or iPad if the device has been locked for an hour or longer. Security researchers from ElcomSoft have found a simple way that could allow anyone to reset the countdown timer of USB Restricted Mode to effectively defeat the purpose of the feature. The issue doesn’t seem to be a severe vulnerability and looks like just a mistake on Apple’s part.
Source: https://thehackernews.com/2018/07/bypass-ios-usb-restricted-mode.html