This code snippet is useful for enhancing the security of your WordPress website. It works by obscuring the default error messages that WordPress shows when a login attempt fails.
By default, WordPress provides detailed error messages such as informing you if the username does not exist, or if the username is correct but the password is not. These messages can potentially be useful to attackers trying to gain unauthorized access to your site.
The provided code replaces these detailed error messages with a generic one: “Something is wrong!”. This way, potential attackers won’t gain any useful information from failed login attempts.
The snippet uses WordPress’s hook system. Specifically, it uses the add_filter
function to modify the ‘login_errors’ filter. The anonymous function that’s passed as the second argument to add_filter
returns the new error message.
Please note that you can customize the error message by editing the return string in the function.
add_filter(
'login_errors',
function ( $error ) {
// Edit the line below to customize the message.
return 'Something is wrong!';
}
);