Unexpected iPhone Reboots Stir Concern Among US Authorities
Unexpected reboots of iPhones have recently caused quite a stir among US law enforcement agencies. A feature in iOS 18, originally thought to be a security measure, appears to be complicating forensic investigations. However, some experts question this theory, suggesting a software glitch may be the real cause.
Mysterious Reboots Puzzling Investigators
In recent incidents, iPhones seized for forensic examination have started rebooting without warning. This has posed challenges for US authorities, as each reboot places the devices in a more secure state, potentially complicating data extraction efforts. However, there is ongoing debate over what’s causing these reboots.
One such case took place in a Detroit, Michigan, forensic lab, where multiple iPhones rebooted within 24 hours of being stored. Surprisingly, even iPhones in airplane mode or placed in Faraday boxes (which are designed to block electronic signals) were affected. This phenomenon has investigators scratching their heads.
Could iOS 18 Be the Culprit?
According to a report from 404 Media, some authorities believe that iOS 18 might be responsible for these reboots. An internal document outlines a theory suggesting that iPhones running iOS 18.0 may trigger reboots under certain conditions. Allegedly, iPhones stored in AFU (After First Unlock) mode might be communicating with each other, instructing devices to reboot after a certain period without activity or network connection.
This theory, if true, would imply that Apple has designed iPhones to enter a more secure state (known as BFU, or Before First Unlock) after a prolonged period without a network, making them harder to access.
Expert Skepticism
Not all experts agree with this theory. Matthew Green, a cryptographer and professor at Johns Hopkins University, finds the hypothesis “highly suspicious.” Although he finds the concept fascinating, he doubts Apple would implement such a feature intentionally. “The idea that phones might restart themselves after an extended period without a network connection is absolutely brilliant, but I’d be amazed if Apple did that on purpose,” Green remarked.
Could It Just Be a Software Bug?
A simpler explanation might be a known software bug. In October 2024, numerous iPhone 16 Pro and iPhone 16 Pro Max users reported spontaneous reboots. Apple addressed this issue in the iOS 18.1 update released at the end of October. Since the affected forensic lab iPhones were still running iOS 18.0, they may simply have been experiencing this bug.
The Mystery Continues
Whether these reboots are due to a deliberate security feature or just a software glitch, the issue has significant implications for forensic investigations. If iOS 18 does indeed cause devices to reboot and enter a secure state automatically, it could change the landscape of digital forensics. For now, law enforcement agencies and experts alike continue to investigate, hoping to understand the root cause behind these mysterious reboots.
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