The igloohome Smart Mortise 2+ comes with a Masking PIN code feature which allows you to enter random digits prior to your real PIN code (up to a total of 16 digits including your real PIN code).

This is optional, but will help to deter hackers and prevent your PIN code from being exposed. Also, with the security lockout mode, the lock will sound an alarm if wrong PIN codes are keyed in consecutively for 5 times (default setting) - the number of wrong attempts to trigger this lockout mode can be modified via the igloohome app.