Those who made an installation “fresh” of the new iOS 9 They probably noticed that compared to the iOS 8.4 system, on the new system we have more Screen security options for iPhone, iPad and iPod.
Besides Touch ID, that allows us Unlock iPhonewith the help footprint, the system asks us to set a PIN code. If on iOS 8.4 pine could be set from four characters digit, on iOS 9 is permitted to us alphanumeric word And personalized numeric code.

Custom Alphanumeric Code (password) and Custom Numeric Code (PIN with more than four characters) are the new options of security for blocking device, entered by Apple with iOS 9. 4-Digit Numeric Code However, the favorite option for many users remains.