Wordpress: Function.php template for better security

function.php

<?php

// A major drawback of the current WordPress login form is 
// that it informs the user which part of the login information he/she has gotten wrong. 
// For instance, if the username is correct and the password wrong, 
// WordPress informs the user about it. This makes it easier to use brute force login 
// as the hacker has a clear idea of whether he/she needs to change the username or password.
// source: http://wp.tutsplus.com/tutorials/security/wordpress-security-threats-that-you-should-look-out-for/

function failed_login () {
    return 'the login information you have entered is incorrect.';
}
add_filter ( 'login_errors', 'failed_login' );

// remove Wordpress Version Generator 
function remove_wp_version () {
    return '';
}
add_filter ( 'the_generator', 'remove_wp_version' );