iOS 11.4 Disables Lightning Connector After 7 Days, Limiting Law Enforcement

hyperclocker writes: The iOS 11.4 update, currently being beta tested, includes a USB Restricted Mode that introduces a week-long expiration date on access to the Lightning port on your iOS devices if your phone hasn't been unlocked, which has implications for law enforcement tools like the GrayKey box.

USB Restricted Mode was outlined this morning by Elcomsoft after testing confirmed that the feature has indeed been enabled. In Elcomsoft's experience, after an iPhone or iPad has been updated to iOS 11.4, if it hasn't been unlocked or connected to a paired computer in the last 7 days using a passcode, the Lightning port is useless for data access and limited to charging.
At this point, it is still unclear whether the USB port is blocked if the device has not been unlocked with a passcode for 7 consecutive days; if the device has not been unlocked at all (password or biometrics); or if the device has not been unlocked or connected to a trusted USB device or computer.