Password Protection and metaboxes

Can you please show me your code so that I can take a look.

Hi Ale,

This depends on how you display custom fields' values in the front end. You need to change your code to check the post status, like this:

if ( post_password_required() ) {
    echo 'Nothing here';
} else {
    echo rwmb_meta( 'field_id' );
}

WordPress hard-coded that in its function get_the_content, so there's no filter to do that automatically. Maybe you write a wrapper function for rwmb_meta like this:

function your_meta( $field_id, $args = [], $post_id = null ) {
    if ( post_password_required ) {
        return 'This post is password protected.';
    }
    return rwmb_meta( $field_id, $args, $post_id );
}

Then use your_meta in replace for rwmb_meta.