Setup 3D pin authorization
In order to activate this layer of security navigate to " Account
" -> "Settings
" -> "Your Profile
" -> "Security
". You will be asked to enter your Master Pin while enabling the security.
Once you are there, you will click on "Enable" near the "Security Level" stage 3. After you enter your Master Pin and confirm that PIN (of 3D security) has been received it'll be activated.
You cannot disable it unless you've ran out of codes, then it automatically disables.