Apple brings hardware microphone disconnect security to iPad

Apple has brought the company’s hardware microphone disconnect security feature to its latest iPads. The security feature makes it impossible for hackers to use malicious software to eavesdrop on an iPad’s surroundings.

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Zack Whittaker for TechCrunch:

The feature was first introduced to Macs by way of Apple’s T2 security chip last year.

The security chip ensured that the microphone was physically disconnected from the device when the user shuts their MacBook lid. The idea goes that physically cutting off the microphone from the device prevents malware — even with the highest level of “root” device permissions — from listening in to nearby conversations.

MacDailyNews Take: A new Apple support guide reveals that the company’s newest iPads have the iPad microphone disconnect security feature. Any certified “Made for iPad” (MFI) case attached to an iPad will trigger the hardware disconnect when closed.

Apple states:
All Mac portables with the Apple T2 Security Chip feature a hardware disconnect that ensures the microphone is disabled whenever the lid is closed. On the 13-inch MacBook Pro and MacBook Air computers with the T2 chip, and on the 15-inch MacBook Pro portables from 2019 or later, this disconnect is implemented in hardware alone. The disconnect prevents any software — even with root or kernel privileges in macOS, and even the software on the T2 chip — from engaging the microphone when the lid is closed. (The camera is not disconnected in hardware, because its field of view is completely obstructed with the lid closed.)

iPad models beginning in 2020 also feature the hardware microphone disconnect. When an MFI compliant case (including those sold by Apple) is attached to the iPad and closed, the microphone is disconnected in hardware, preventing microphone audio data being made available to any software — even with root or kernel privileges in iPadOS or in case the firmware is compromised.

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