4 ms·

So, it is fair to say this is just the full stack (endpoints, databases, etc) being sharded consistently?

• therein 7y ago
  Yup, correct. The whole stack is consistently sharded. They should be sharing little to no machinery at all and only a handful of people are able to use the "migration" tool to force your account from one partition to the other. What had struck me as an interesting vector back when I was involved with iCloud was how this ability could be used to move an account from a production partition to the staging partition as staging partition has unique debugging and tracing capabilities. When an employee joins iCloud, their account is often moved from the production partition to the staging partition using this tool. Technically it should be possible to take any iCloud account and move it to this partition and use the slightly modified code in there to gain access to the contents of the account.
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• deleted 7y ago
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