[ipsin]

So what are the actual rate limits on unlock code discovery?

If you're typing in passwords, it might take a while.

If you've disassembled and imaged the storage device, and have physical access to the hardware security module (HSM), does that improve your rate or ability to parallelize?

I've been a little annoyed at how the FBI (for itself and again as proxy for the NSA) is playing helpless, as if the Director of the NSA or FBI is going to be stuck tapping unlock codes into a suspect's phone while the countdown timer on a 100 mega-pedophile nuke ticks down, somewhere in The City.