Cellebrite executive says unlocking the iPhone is for the public good
Nazarian made sure to explain that the process does not include listening in to one's phone calls. A court order needs to be obtained requesting the information as evidence needed to help build a case, or complete an investigation.
How Cellebrite unlocks the iPhone is unknown, of course. One guess made by Ryan Duff, director of cyber solutions at Point3 Security, is that the company discovered a flaw in the iPhone's Secure Enclave. Found inside the smartphone since the Apple iPhone 5s, this is a chip that is akin to the security director on the iPhone. The chip makes hackers have to wait longer times between passcode entries. A strong passcode is important for iPhone users to create. Duff says that if a flaw is how Cellebrite opens locked iPhone models, it would take them under 23 hours to guess a 6-number passcode. On the other hand, an alpha-numeric passcode using lowercase letters and numbers would take 5 and a half years to open, and a stronger passcode would be "uncrackable."
It is extremely possible that this theory has nothing to do with the method used by Cellebrite to unlock the iPhone. And while we will probably never learn the method employed, the company just wants you to understand that the method was created in the name of public safety.