U.K.-based security researcher has demonstrated how the FBI could have cracked the San Bernardino terrorist’s iPhone. The technique, called NAND mirroring, allows all four-digit passcodes to be guessed in around 40 hours. But it’s a technically difficult operation that could easily destroy a device’s data if not flawlessly executed. In March, FBI Director James Comey contended such a procedure would not work to unlock an iPhone 5c belonging to Syed Rizwan Farook, who with his wife shot and killed 14 people in San Bernardino, California.”]
Source: https://www.bankinfosecurity.com/could-fbi-have-cracked-shooters-iphone-for-less-than-100-a-9403