Report casts doubt on Apple’s claim that iCloud user data is anonymous

Last week researchers reported that several Apple apps were harvesting user data even when told not to, a claim that prompted a class-action lawsuit. But a follow-up suggests the situation could be even worse than first thought. The same two iOS devs (and “occasional security researchers”) who post under the Twitter account Mysk now claim to have spotted unique ID numbers in the usage data sent to Apple, seemingly contradicting the company’s claim that all such data is anonymous.

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