Those who made a "fresh" installation of the new iOS 9 They have probably noticed that compared to iOS system 8.4, the new system have more screen security options for iPhone, iPad and iPod.
Beside touch IDThat allows us release iPhoneacquis with the help footprintSystem requires us to setup a PIN. If the pin on iOS 8.4 be set in four character digitsOn iOS 9 allowed us alphanumeric password yes yes custom numeric code.
Custom Alphanumeric Code (Password) and Custom Numeric Code (PIN with more than four characters) are the new options security for device lock, introduced by Apple with iOS 9. 4-Digit Numeric Code still remains the preferred option for many users.