iPhones Open to Attack Even When Off, Researchers Say

Wireless chips that run when the iPhone iOS is shut down can be exploited.

Dark Reading Staff, Dark Reading

May 16, 2022

1 Min Read
iPhone and AirPods on a desk
Source: Yalcin Sonat via Alamy

Bluetooth, near-field communication (NFC) and ultra-wideband (UWB) operate when iPhone's iOS system is shut off, meaning even powered-down devices are vulnerable to attack.

New research from the Technical University of Darmstadt in Germany examined the chips that enable the "Find My" functions and allow users to access banking and identification information even when the device is in low-power mode. This access also has the unintended consequence of leaving the device open to attack, even though the user might think the iPhone is offline and secure. according to the team's paper, entitled "Evil Never Sleeps."

"On recent iPhones, Bluetooth, near field communication (NFC), and U=ultra-wideband (UWB) keep running after power off, and all three wireless chips have direct access to the secure element," the paper states. "As a practical example what this means to security, we demonstrate the possibility to load malware onto a Bluetooth chip that is executed while the iPhone is off." 

That said, exploitation is far from simple, requiring several steps and the use of known bugs like BrakTooth, the researchers explain.

About the Author(s)

Dark Reading Staff

Dark Reading

Dark Reading is a leading cybersecurity media site.

Keep up with the latest cybersecurity threats, newly discovered vulnerabilities, data breach information, and emerging trends. Delivered daily or weekly right to your email inbox.

You May Also Like

More Insights