Posted on 06/19/2019 7:36:21 PM PDT by Swordmaker
That’s what GreyKey’s and Cellebrite’s hacks do: they get rid of the flipping lid. It allows a unlimited number brute attempts at guessing the passcode within the interior limited speeds allowed by the Secure Enclave Encryption processor. The delays between attempts are also bypassed. I believe the internal delay is a little over one second between attempts.
Both use a list of most common passcodes to begin with, such as 1234, 4321, the corner numbers, the cross pattern, diagonals plus zero, etc., then move on to known information about the suspect such as birthdays, anniversaries, etc, input by the authorities, then move on to other known patterns people like to use. They then go to brute force.
Both GreyKey and Cellebrite recommend using their products in a Faraday cage or shielded room where no signals from outside are present, thus blocking any attempt from owners, agents, henchmen, or family to erase the device by FindMyiPhone.
Both bypass the countdown attempt erasure built-in by Apple and allow unlimited brute force attempts at guessing the passcode. The only method of preventing that break-in is to use a complex passcode that requires an amount of time that causes them to give up. A seven character alphanumeric plus symbol passcode is such a complex passcode that will take thousands, if not millions of years to try all the possible passcodes.
Actually, there is, at least for messaging. iMessage has bi-directional 256bit AES encryption which is uncrackable. The encrypted data can be intercepted, but for the interceptor, all they get is incomprehensible gobbledegook. It doesn’t help with email or voice communications.
For email, you can PGP encryption. . .
“One thing I’d like to see as an option is the ability to change how often you do need to enter it. “
Remember that up up to date iOS phones have the emergency feature;
press the power button quickly five times and it will lock the phone and require manual entry of the password to open, (and will also call 911 or other preset emergency contacts).
Check Settings for details.
I do it whenever i leave the house (I try not to use the phone on the street).
Yeah, I'm familiar with that. Still would like to have 2 passwords. One to open, and one to wipe.
its a good idea.
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