Block Hackers by Hiding Admin Username

As shown in video above, add code below to the bottom of your active themes functions.php file or better yet add it to the child themes function.php file .

If those are not yet possible then use a plugin called Code Snippets as demonstrated in the video.

function author_archive_redirect() {
  if( is_author() ) {
    wp_redirect( home_url(), 301 );
  exit;
  }
}
add_action( 'template_redirect', 'author_archive_redirect' );