Grumpy Old Geeks Topics NAND mirroring Topic NAND mirroring 2 mentions in 1 episode A technique described as allowing repeated passcode attempts by copying an iPhone’s memory contents. Mentions 178: Taste the Hate-bow Sep 23, 2016 30:44 It's a technique known as NAND mirroring. 31:00 this allows him to do is get an unlimited number of attempts at the password