Maybe as a middle ground it could be that the duress pin is simply easier to brute force. And when the cracker gets to a 4 digit pin before the 6 digit one it t

Maybe as a middle ground it could be that the duress pin is simply easier to brute force. And when the cracker gets to a 4 digit pin before the 6 digit one it triggers the erasure. Maybe wouldn't help an online attack but also wouldn't implicate a willful destruction of evidence