Unveiling Unique MAC Addresses: iPhones Challenge Apples Privacy Pledges – Insider Wales Sport

Title: Apple Privacy Feature Fails to Hide Wi-Fi Address, Posing Potential Tracking Risks


In a surprising revelation, Apple’s much-touted privacy-enhancing feature, introduced in iOS 14 last year, has been found to have never worked as intended. The feature, aimed at concealing the Wi-Fi address of iPhones and iPads, failed to replace the real address with a private, unique one, potentially compromising user privacy.


Wi-Fi media access control (MAC) addresses, similar to license plate numbers for vehicles, can be exploited to track individuals across different networks. Apple’s privacy feature was expected to mitigate this risk, but recent findings suggest that the real MAC address was being displayed to other devices connected to the network.

The Flaw

The flaw, traced back to iOS version 14, was discovered by security researchers who identified a vulnerability (CVE-2023-42846) that prevented the privacy feature from functioning correctly. The flaw allowed devices to continue transmitting MAC discovery requests, making the feature useless even when using a VPN or activating Lockdown Mode.

Impact and Concerns

While the impact of this flaw may be minimal for most iPhone and iPad users, individuals with stricter privacy concerns may find themselves susceptible to tracking across different Wi-Fi networks. Apple’s promise to reduce tracking of their devices has been compromised due to this unclosed loophole.

Tracking Risks Remain

Despite the standardization of HTTPS-encrypted communications, the presence of a permanent MAC address presents possibilities for potential tracking. The flaw in Apple’s feature to hide the MAC address reveals a significant gap in safeguarding user privacy.

Apple’s Response

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Apple has not provided an explanation for how such a fundamental flaw in the privacy feature went undetected for three years. However, the company has released a patch to address the vulnerability, involving the removal of the code responsible for the flaw.


While Apple’s privacy feature aimed to enhance user privacy by concealing Wi-Fi MAC addresses, recent revelations have exposed its failure to function correctly. Despite the company’s efforts to reduce tracking across different networks, this flaw undermines those promises. While the impact of the flaw may be limited for most users, those with stringent privacy concerns may need to take extra precautions to mitigate potential tracking risks. As always, users are advised to stay vigilant and ensure their devices are up to date with the latest security patches.

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About the Author: Hanley Mallin

Internet geek. Wannabe bacon enthusiast. Web trailblazer. Music maven. Entrepreneur. Pop culture fan.

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