Device Back Button

Hi There,

As added security to my App I created a “PIN” page which requires users to enter a PIN number to navigate to the home page on login (or when app is idle for a specific period of time) instead of having to “login” to the backend each time the user enters the app, I have no further logic to navigated back to this page, however I noticed that if I tap the back button on the device it actually takes the user back to this “PIN” page, is there a way of “blocking” the user from nagivating back to this page in any way?

Separate note, I have a signin page created with the Authentication tab on Appgyver (this logs user into the backend ie “Backendless”, I retain userToken through appVariable which allows user to stay logged in) and I noticed that the user cannot nagivate back to this page even with the device back button.

Thank you,