A new security feature in Apple’s upcoming macOS 13 Ventura will automatically block new USB-C devices from communicating with the operating system until the accessory is approved by the user.
Apple has released details about the new security feature in its release notes, which appear to be aimed at protecting Apple’s newer laptops that run on its M1 or M2 custom chips from potentially malicious accessories.
According to Apple’s description, the feature will be enabled by default and will require the user to approve a USB-C accessory before they can talk to the operating system – essentially a pop-up window that asks the user for permission. Apple says this doesn’t apply to power adapters, stand-alone displays and connections to an approved hub – and devices can still charge even if you don’t approve the accessory. Apple says accessories that are already connected will work automatically when updated to the new macOS software.
The move to limit USB-C devices by default is a silent nod to a growing range of threats that pose a risk to Apple users. Researchers have shown that it is possible to hide malicious implants in regular-looking charging cables that can divert computers to laptop USB devices that are designed to permanently fry the inside of a computer.
The new feature of macOS is also almost identical to the limited USB mode that Apple introduced in iOS 12, which prevents unauthorized accessories and cables from accessing iPhone and iPad data without the owner’s permission, at a time when law enforcement cracking phones. devices to circumvent the security of Apple devices.
Here is the full description of the notes to the publication (as first noted by The Verge):
On Apple Silicon Mac laptops, the new USB and Thunderbolt accessories require user approval before the accessory can communicate with macOS for connections directly to the USB-C port. This does not apply to power adapters, stand-alone displays or connections to an approved hub. Devices can still be charged if you select “Do not allow”.
You can change the security configuration in System Settings> Security & Privacy> Security. The initial configuration is Ask for new accessories. Configuring an accessibility switch sets the policy to always allow the use of accessories. Approved devices can connect to a locked Mac for up to three days.
Accessories attached during software updates from previous versions of macOS are allowed automatically. New accessories attached before restarting the Mac may list and work, but will not be stored until they are connected to an unlocked Mac and explicitly approved.
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