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A comment on Google, Meta 'break' Apple's device fingerprinting rules. Parent comment

Re:Google, Meta 'break' Apple's device fingerprinting rules by idle_zealot on Tuesday May 07, 2024 @12:21AM (#40282298)
Surely the fix here is to lie to apps about uptime, adding the offset at the OS level.
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Re:Google, Meta 'break' Apple's device fingerprinting rules by caf on Tuesday May 07, 2024 @12:40AM (#40282406)
"boot time plus random offset" is going to be just as much of a fingerprint as "boot time" is, though (the offset can't change once picked for a boot because the whole point is to be able to calculate the time between events in the app).

Something that reduces the granularity a lot, like "time since UTC 00:00:00 on the day of the last device boot", might work.

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Re:Google, Meta 'break' Apple's device fingerprinting rules by yencabulator on Wednesday May 08, 2024 @03:26PM (#40301946)
Make the offset app-specific. Then pretend the phone ran out of memory and ask the app to terminate every now and then, switch to a new random offset for every run.
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