Akismet filter privact notice

functions.php

add_filter( 'akismet_comment_form_privacy_notice_markup', 'bk_custom_akismet_markup' );

function bk_custom_akismet_markup( $markup ) {
$markup = '<p class="akismet_comment_form_privacy_notice">' . sprintf(
  __( 'This site uses Akismet to reduce spam. <a href="%s" target="_blank" rel="nofollow">Learn how your comment data is processed</a>.', 'akismet' ),
  'https://akismet.com/privacy/'
  ) . '</p>';
  return $markup;
}