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Apple's Shield Shattered: The Critical Flaw in iPhone Theft Defense

Apple's Stolen Device Protection faces scrutiny as a critical flaw undermines security, requiring urgent attention.

 


Several weeks ago, Joanna Stern from the Wall Street Journal reported that an increasing number of iPhone thieves have been stealing their devices from restaurants and bars and that one criminal was earning up to $300,000. 

During these attacks, it was common for thieves to observe their victims entering their passcodes before stealing their devices, changing their Apple ID passwords, and disabling Find My iPhone so that they could not be tracked or wiped remotely. With the help of this Keychain password manager, a thief can easily lock victims out of accounts (such as Venmo, CashApp, other banking apps, etc.) by using their passwords. 

However, Stolen Device Protection helps protect users against this vulnerability in two main ways. Users must use Face ID or Touch ID authentication (with no fallback for the passcode) to change important security settings such as Apple ID passwords or device passcodes when the feature is enabled. In addition to this, it also introduces a one-hour security delay before users can adjust any of these security settings. 

Essentially, this is intended to give victims enough time to mark their iPhones as lost before a thief can change them crucially. With the release of iOS 17.3 last week, Apple made sure that it included much anticipated features such as Collaborative Apple Music Playlists and AirPlay hotel integration. 

The biggest highlight of iOS 17.3 was the Stolen Device Protection, but we found that it was not as secure as we originally thought it would be. This is a new feature of iOS 17.3 called Stolen Device Protection that prevents bad actors from completing crucial actions such as changing your Apple ID password if they have your passcode. The purpose of this is to prevent bad actors from completing critical operations such as changing your passcode. Thus, you are unable to track the iPhone or mark it as stolen if someone stole it. 

In familiar locations such as your home and workplace, the iPhone Stolen Device Protection feature is turned off by default. However, there is a fatal flaw here. It is difficult for users to set familiar locations manually on the iPhone, as it learns your habits and automatically marks familiar locations as familiar locations. 

As a result, if you frequent the same bar or cafe over and over again, the Stolen Device Protection feature might not work, and it will be marked as a familiar place. There are two ways in which you can fix this problem. For example, the new feature automatically detects when an iPhone has been stolen, secures the device by using Face ID or Touch ID authentication, and then allows the user to change or modify any passwords stored on the device. Also, it would be necessary to wait for one hour with a mandatory time delay before any of the changes would be locked in. 

As a result of the cool-down period, users can report or mark the iPhone as lost before making any changes to it before making any changes to the devices. As ThioJoe pointed out in the post, users who have Significant Locations enabled will not be able to call upon the increased security layers if they have Significant Locations enabled on their devices. 

According to Apple, once a user starts frequenting a certain location, that location will be deemed 'significant'. As well as using this data to suggest journals, store memories, and display photos, it uses other data too. Furthermore, Apple is now also utilizing this technology to protect stolen devices after they have been lost or stolen. 

Furthermore, ThioJoe explains that users have no control over Significant Locations, which, means that once your iPhone finds itself in a Significant Location, all the protection features of the device are nullified by that moment. According to Apple, the feature, which is buried in the iPhone's settings menu, will add an extra layer of security to the iOS operating system. 

The security update addresses a vulnerability that has been exploited by thieves, allowing them to lock victims out of their Apple accounts, delete their pictures and other files from their iCloud accounts, and empty their bank accounts by using the Keychain Password Manager passwords that they keep in their accounts. Anecdotal evidence suggests that phone thefts are on the rise due to Apple's introduction of this feature. 

Incidents of stolen phones are prevalent on online forums like Reddit and in news articles across various locations, ranging from Los Angeles to London. Common tactics employed by thieves include pickpocketing, "table surfing," and moped snatching, as reported by law enforcement. The Wall Street Journal previously highlighted criminal activities where perpetrators observed individuals entering passcodes on stolen phones to access personal information. 

To counteract such security concerns, Stolen Device Protection has been introduced, designed to monitor a user's "familiar locations," such as their home or workplace. When attempting certain actions on the device outside these recognized places, additional biometric security measures are enforced. This approach aims to reduce the reliance on passcodes, susceptible to theft through various means, in favour of more secure "biometric" features like facial recognition or fingerprints, which are significantly harder to replicate.

Currently, as Apple works on developing a more robust solution, a temporary workaround involves disabling the Significant Locations feature on your iPhone. This can be done by accessing the Settings app, navigating to Privacy & Security, and selecting Location Services > Significant Locations. This feature prompts the device to request Face or Touch ID authentication when Stolen Device Protection is active. Although this serves as a temporary resolution, it is anticipated that Apple will enhance and refine this feature in future updates to provide a more comprehensive and secure solution.
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