Apple is outright lying here. "the technique could be used on any number of devices" - not since the iPhone 3GS! https://www.apple.com/customer-letter/answers/ …
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Replying to @marcan42
Apple introduced per-device firmware signing (SHSH blobs) in the iPhone 3GS to stop people from downgrading (as a jailbreaking deterrent).
5 replies 6 retweets 5 likes -
Replying to @tpw_rules
@marcan42 i thought shsh only protected the official mechanisms. at this point they need a hardware programmer to write the flash anyway1 reply 0 retweets 0 likes -
Replying to @tpw_rules
@tpw_rules SHSH is enforced by the bootrom. And you don't need a hardware programmer for what the FBI is asking.1 reply 0 retweets 0 likes -
Replying to @marcan42
@tpw_rules The only thing Apple needs to do is provide a signed/SHSHed restore image (i.e. runs from ramdisk) with pin throttling disabled.1 reply 0 retweets 0 likes
@tpw_rules That would run right off of USB DFU boot, no need to even take the phone apart.
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