Websites Can Identify If You're Using iPhone's New 'Lockdown' Mode

Lockdown Mode disables a series of features that can be used to hack iPhone users. But the lack of these features also makes it easier to figure out who is using Lockdown Mode. From a report: Once Apple launches the new iPhone and iPad operating system early next month, users will be able to turn on a new privacy mode that the company calls "extreme." It's made for journalists, activists, politicians, human rights defenders, and anyone else who may be worried about getting targeted by sophisticated hackers, perhaps working for governments armed with spyware made by companies such as NSO Group. Apple calls it "Lockdown Mode" and it works by disabling some regular iPhone features that have been exploited to hack users in the past. But if users turn on Lockdown Mode, they will be easy to fingerprint and identify, according to a developer who created a proof of concept website that detects whether you have Lockdown Mode enabled or not. John Ozbay, the CEO of privacy focused company Cryptee, and a privacy activist, told Motherboard that any website or online ad can detect whether some regular features are missing, such as loading custom fonts, one of the features that Lockdown Mode disables. "Let's say you're in China, and you're using Lockdown Mode. Now, any website that you visit could effectively detect you are using Lockdown Mode, they have your IP address as well. So they will actually be able to identify that the user with this IP address is using Lockdown Mode," Ozbay said in a call. "It's a tradeoff between security and privacy. [Apple] chose security."

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