Restricted Mode Disable USB Port After 7 Days on iOS 11.4 . Apple introduced its so-called “zero-knowledge encryption” feature in iOS 8 in 2014, meaning only the device owner, and not Apple, can unlock the phone.
reading Apple documentation related to iOS11.4 and researching developer betas, developers discovered a major new security feature that is about to be released with iOS 11.4. The update will disable the Lightning port after 7 days since the device has been last unlocked. This is a huge security measure, the reasons behind this update is iPhone unlocking solutions developed by GrayShift and Cellerbrite.
Restricted Mode Disable USB Port After 7 Days on iOS 11.4
Restricted Mode Disable USB Port After 7 Days on iOS 11.4
Apparently, latest iOS firmware keep the information about the date and time the device was last unlocked or had a data connection to a USB port. After the seven days elapse, the Lightning port will be disabled. Once this happens, you will no longer be able to pair the device to a computer or USB accessory, or use an existing lockdown record, without unlocking the device with a passcode. The only thing you’ll be able to do is charging.
Actually, it was only a matter of time. Companies such as Cellerbrite and American startup GrayShift make their business by unlocking protected iPhones.
While Cellerbrite offers this exclusively as an in-house service, and the service is only available to select law enforcement agencies with proper court orders, GrayKey supplies the actual unlocking hardware to North American law enforcement. Both companies keep their lips shut as to the details of their techniques, so the exact method they use to gain access to the devices is not known to Apple. However, their ability to unlock even the latest hardware running the latest version of iOS is limited and needs the physical device connected to a box, so Apple is taking action and protect the users with the USB Restricted Mode.
Source: Elcomsoft
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