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I'm speculating this works similar to iOS developer signing, where each device has a unique HW-fused ID, and only Apple can issue a cryptographically-signed pro
by United857 8y ago
I'm speculating this works similar to iOS developer signing, where each device has a unique HW-fused ID, and only Apple can issue a cryptographically-signed provisioning profile with that ID to allow you to load software onto that device.
In this case, each HW subsystem probably has its own unique ID which is hashed together; replacing one invalidates the hash and requires Apple to re-sign the system's "provisioning profile" to pass power-on tests.
- bigbugbag 8y agoUnique hardware Id is incredibly useful to identify and track devices and people around.
- dannyw 8y agoYes, so if you get your Mac or iPhone stolen it’s useless to the thief. This already happens with iCloud Activation Lock, but people just disassemble the motherboard and sell parts like the screen instead.
- bigbugbag 8y agoHow exactly is that helping getting the device back ? or the data ? How is that supposed to work anyways ? I only know a few stories of stolen iphones and macbooks and thieves had no issue using the devices or selling them.