Apple releases iOS 11.4.1 with USB Restricted Mode

Apple releases iOS 11.4.1 with USB Restricted Mode

Less than a day after Apple officially added an iPhone and iPad hack-preventing USB Restricted Mode to iOS, security researchers at ElcomSoft have detailed a simple workaround that can be used by law enforcement personnel to mitigate the feature.

However, Elcomsoft now belives it has found a way round the data port being locked in the first instance, by connecting cheap USB devices to seized iPhones.

The feature was created to shield iPhone users against passcode-cracking devices used by law enforcement, essentially immobilizing any attempts at accessing the device after it's been in locked mode for an hour.

Back when Apple first revealed that it would be implementing USB Restricted Mode in iOS, the company caught some backlash from U.S. authorities.

But the trick is to prevent USB Restricted Mode from engaging itself. Originally, Apple planned to have the restricted mode kick in after a week but last month changed its mind to reduce the time limit to an hour. This can be done by plugging any USB accessory into the iPhone's Lightning port.

Apple created the hour-long window as a compromise between security and convenience, since it didn't want users to have to enter a passcode every time they plugged into a charging cable or whatever, according to a person familiar with the company's thinking.

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CoolStar has announced that the Electra jailbreak works on iOS 11.4b3 and has advised all users on a higher firmware version to downgrade while they still can! "Your accessory then remains connected, even if your device is subsequently locked".

Now you'll want to make sure that the USB Accessories toggle is turned off in order to enable USB Restricted Mode.

Another user pointed out that the iPhone's Settings apps shows that the Personal Hotspot is using up nearly 50 percent of the device's battery life even when the user has never activated it.

But with a power-transferring accessory, police - or other hackers - have a fairly straightforward means of accessing a seized iOS 11.4.1 device.

Apple also today released security updates for. While iOS 11.4.1 is likely the final update before iOS 12, this bug could force Apple to push out 11.4.2 quickly.

We will have to wait and see how Apple responds to the situation.

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