Customizing the Author Box Title with the Genesis theme framework.

gistfile1.php

<?php

// Modify the author box title
add_filter('genesis_author_box_title', 'child_author_box_title');
function child_author_box_title($title) {
    $title = sprintf( '<h3>%s %s</h3>', __( 'About', 'genesis' ), get_the_author() ) );
    return $title;
}