But wait, the alternative is 4-digit PIN. How exactly is 4-digit password with only digits secure? How easy is it to see it over the shoulder? The answer is:

But wait, the alternative is 4-digit PIN. How exactly is 4-digit password with only digits secure? How easy is it to see it over the shoulder? The answer is: pretty easy. Both phone locking technologies are not about securely protecting data, they are about preventing the phone from casual looks when you are away for 5 minutes and left your phone. And TouchID does a better job for this case.