Apple’s crusade for user privacy on its iOS platform stares at a potential setback as a new report accused tech bigwigs including Google, Meta, and Spotify of flouting the company’s guidelines on device fingerprinting.

Device fingerprinting is a technique that involves collecting various details from the user’s device, like system boot time or available disk space, to create a unique identifier. This identifier can be used to track users across platforms for personalized advertising – a practice the iPhone maker has increasingly restricted.

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