So you can remove the author-pages with an author.php file in your (child) theme, but what if you don’t want to touch the theme you ask? Well, I just added this code snippet to two of the sites I manage to stop user-enumeration (which can be done on any WordPress site by going to /index.php?author=1):
add_action('wp','no_author_page'); function no_author_page() { if (is_author()) { global $wp_query; $wp_query->set_404(); status_header( 404 ); get_template_part( 404 ); exit(); } }
Disclaimer: the bulk of above code was shamelessly copy/ pasted from https://wordpress.stackexchange.com/a/27124
To remove links to author pages, as well as author pages:
// Remove Author Pages and Links
function remove_author_pages_page() {
if ( is_author() ) {
global $wp_query;
$wp_query->set_404();
status_header( 404 );
}
}
function remove_author_pages_link( $content ) {
return get_option( ‘home’ );
}
add_action( ‘template_redirect’, ‘remove_author_pages_page’ );
add_filter( ‘author_link’, ‘remove_author_pages_link’ );
// End Remove Author Pages and Links