Hacking group AntiSec (connected to Anonymous and LulzSec) made some bold claims Tuesday that it had obtained the unique device identifiers (UDIDs) of 12 million iOS devices from an FBI laptop, setting more than a few people on edge.

ENGADGET: Apple denies giving FBI any iOS device UDIDs, raises questions over AntiSec claims

While some carriers still use phone numbers to identify specific user devices or accounts, Apple has abandoned them in favor of unique device IDs (UDIDs).

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