iOS 12 Includes Setting to Disable USB Access When an iPhone Hasn't Been Unlocked for More Than an Hour

In iOS 12, there's a new setting that will effectively put an end to law enforcement access to iPhones and iPads using USB devices like the GrayKey box, preventing USB accessories from connecting when it's been more than an hour since the iPhone was last unlocked.

Located under Touch ID & Passcode, the new setting, which requires a passcode to be entered to allow a USB accessory to connect after an hour, is enabled by default.

ios12usbaccessoriessetting
You can toggle off the setting to allow USB accessories to connect at any time, but most users are likely going to leave this set to the default setting as there's not a whole lot of benefit to turning it off. With this turned on, you'll need to enter your passcode for a data connection to the iPhone using a USB device, such as when you connect it to iTunes on a computer, but charging via the Lightning port will continue to work fine.

The new setting is of interest because it's an expansion of USB Restricted Mode, a feature Apple toyed with during the iOS 11.4 beta. USB Restricted Mode was designed to disable USB access to the Lightning Connector after 7 days, but iOS 12 cuts that time period way, way down.

Law enforcement officials use USB access to an iPhone or an iPad to connect accessories like the GrayKey box, a tool that plugs into the Lightning port of an iPhone and uses the data connection in an attempt to brute force a passcode.

With the new setting, an iPhone's Lightning port data connection will not work with the GrayKey box if it's been more than an hour since a passcode was entered, rendering it effectively useless unless used immediately after an iPhone is obtained from a suspect.

Law enforcement officials are likely going to be unhappy with the changes Apple is making in iOS 12 because it's going to make iOS 12 devices a lot harder to get into, but from a customer point of view, this setting offers protection from hackers and other bad actors who may be able to get ahold of this kind of technology.

Note: Due to the political nature of the discussion regarding this topic, the discussion thread is located in our Politics, Religion, Social Issues forum. All forum members and site visitors are welcome to read and follow the thread, but posting is limited to forum members with at least 100 posts.

Related Forum: iOS 12

Top Rated Comments

Khedron Avatar
72 months ago
In before that guy who's been professionally cracking iOS for a decade tells us he already knows how to bypass this setting.
Score: 57 Votes (Like | Disagree)
Mr. Heckles Avatar
72 months ago
This is just awesome! I’m glad it’s an hour and not a week.
Score: 38 Votes (Like | Disagree)
Mr. Heckles Avatar
72 months ago
what are you hiding?
i just had a 4 digit pin lol
Banking info, emails, contacts of friends and family, photos, personal info, and more. No one needs to see this info unless I let them. Period.
Score: 28 Votes (Like | Disagree)
justiny Avatar
72 months ago
I’m perfectly fine with law enforcement officials being unhappy about this.
Score: 26 Votes (Like | Disagree)
Robert.Walter Avatar
72 months ago
Should also be triggered when a phone is put into SOS mode and whenever TouchID/FaceID is disabled.

If it’s not doing that, that would seem to be an oversight.
Score: 19 Votes (Like | Disagree)
jermwhl Avatar
72 months ago
Good - **** the police
I was wondering why this was listed under "political, religious, and social issues". I guess this is why, lol.
Score: 15 Votes (Like | Disagree)

Popular Stories

iOS 17

iOS 17.2 Will Add These 12 New Features to Your iPhone

Friday December 1, 2023 12:19 pm PST by
iOS 17.2 has been in beta testing for over a month, and it should be released to all users in a few more weeks. The software update includes many new features and changes for iPhones, including the dozen that we have highlighted below. iOS 17.2 is expected to be released to the public in mid-December. To learn about even more features coming in the update, check out our full list. Journal ...
iOS 16 4 Web Push

Apple Confirms Governments Using Push Notifications to Surveil Users

Wednesday December 6, 2023 5:06 am PST by
Unidentified governments are surveilling smartphone users by tracking push notifications that move through Google's and Apple's servers, a US senator warned on Wednesday (via Reuters). In a letter to the Department of Justice, Senator Ron Wyden said foreign officials were demanding the data from the tech giants to track smartphones. The traffic flowing from apps that send push notifications...
airpods pro 2 pink

Apple Releases New AirPods Pro 2 Firmware

Tuesday December 5, 2023 11:28 am PST by
Apple today released new firmware update for both the Lightning and USB-C versions of the AirPods Pro 2. The new firmware is version 6B34, up from the 6B32 firmware introduced in November. Apple does not provide details on what features might be included in the refreshed firmware beyond "bug fixes and other improvements," so it is unclear what's new in the update, but prior software releases ...
Beyond iPhone 13 Better Blue

'All-Screen' iPhone Under-Display Camera Enters Development

Wednesday December 6, 2023 2:03 am PST by
Apple's Korean suppliers have begun developing smartphone under-display cameras (UDC), paving the way for the first iPhone with a true "all-screen" appearance. According to The Elec, LG Innotek has entered the preliminary development of the UDC, which sits under the display and does not result in a visible hole in the panel when the camera is not in use. A UDC differs from a typical front ...
magsafe blue 2

iOS 17.2 Brings Qi2 Support to iPhone 13 and iPhone 14 Models

Tuesday December 5, 2023 11:04 am PST by
The iOS 17.2 update that Apple is set to release to the public in the near future will bring support for the next-generation Qi2 wireless charging standard to the iPhone 13 and iPhone 14 models. Qi2 was mentioned in the release notes for the RC version of the update that came out today. With the addition of support for the new standard, iPhone 13 and iPhone 14 models will work with Qi2...
iphone se 4 modified flag edges

iPhone SE 4 May Reuse Existing iPhone 14 Battery

Wednesday December 6, 2023 1:17 pm PST by
Recently, MacRumors has received details on the battery currently being tested on the upcoming fourth-generation iPhone SE, and the information corroborates previous findings in relation to the device. The iPhone SE 4, known by its device identifier D59, is expected to use the exact same battery found in the base model iPhone 14. Partially assembled prototypes of the next iPhone SE have been ...
airpods pro bulbs

Black Friday Prices Return for AirPods Pro 2 With USB-C, iPad, and More

Tuesday December 5, 2023 7:30 am PST by
Today we're tracking a collection of deals that are matching - or nearly matching - the same all-time low discounts we saw during Black Friday. This includes the AirPods Pro 2 with USB-C, 9th generation iPad, and M1 MacBook Air. Note: MacRumors is an affiliate partner with some of these vendors. When you click a link and make a purchase, we may receive a small payment, which helps us keep the ...
instagram messenger

Instagram and Facebook Messenger Chats to Disconnect This Month

Tuesday December 5, 2023 1:57 am PST by
Meta has revealed plans to end Instagram users' ability to chat with Facebook accounts later this month, rolling back a feature that it introduced over three years ago. In September 2020, Meta (then Facebook) announced it was merging its Facebook Messenger service with Instagram direct messaging, allowing Instagram users to chat with Facebook users and vice versa using the same platform....