This little snippet will change the title attribute text when you hover over the WordPress logo on the login page. Super easy and very useful when working on a site for a client.

Simply paste the following code snippet into your functions.php file. Title text can be customized on line 2.

 function  custom_login_title() {         return 'Your desired text'; } add_filter('login_headertitle', 'custom_login_title'); 

Thanks to Dave Clements for this code!