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understrap/inc/security.php

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<?php
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/**
* Inspired by Simon Bradburys cleanup.php fromb4st theme https://github.com/SimonPadbury/b4st
*
* @package understrap
*/
if ( ! function_exists( 'no_generator' ) ) {
/**
* Removes the generator tag with WP version numbers. Hackers will use this to find weak and old WP installs
*
* @return string
*/
function no_generator() {
return '';
}
} // endif function_exists( 'no_generator' ).
add_filter( 'the_generator', 'no_generator' );
/*
Clean up wp_head() from unused or unsecure stuff
*/
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remove_action( 'wp_head', 'wp_generator' );
remove_action( 'wp_head', 'rsd_link' );
remove_action( 'wp_head', 'wlwmanifest_link' );
remove_action( 'wp_head', 'index_rel_link' );
remove_action( 'wp_head', 'feed_links', 2 );
remove_action( 'wp_head', 'feed_links_extra', 3 );
remove_action( 'wp_head', 'adjacent_posts_rel_link_wp_head', 10);
remove_action( 'wp_head', 'wp_shortlink_wp_head', 10);
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if ( ! function_exists( 'show_less_login_info' ) ) {
/**
* Show less info to users on failed login for security.
* (Will not let a valid username be known.)
*
* @return string
*/
function show_less_login_info() {
return '<strong>ERROR</strong>: Stop guessing!';
}
} // endif function_exists( 'show_less_login_info' ).
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add_filter( 'login_errors', 'show_less_login_info' );