Index: src/wp-admin/options-reading.php
===================================================================
--- src/wp-admin/options-reading.php	(revision 45153)
+++ src/wp-admin/options-reading.php	(working copy)
@@ -121,8 +121,20 @@
 </label></li>
 </ul>
 	<?php if ( 'page' == get_option( 'show_on_front' ) && get_option( 'page_for_posts' ) == get_option( 'page_on_front' ) ) : ?>
-<div id="front-page-warning" class="error inline"><p><?php _e( '<strong>Warning:</strong> these pages should not be the same!' ); ?></p></div>
-<?php endif; ?>
+	<div id="front-page-warning" class="error inline"><p><?php _e( '<strong>Warning:</strong> these pages should not be the same!' ); ?></p></div>
+	<?php endif; ?>
+
+	<?php
+	/**
+	* Privacy Policy page should not be set either as Front page or as Posts page.
+	*
+	* @since 5.3.0
+	*/
+	$privacy_policy_page = (int) get_option( 'wp_page_for_privacy_policy' );
+
+	if( $privacy_policy_page === (int) get_option( 'page_on_front' ) ||  $privacy_policy_page === (int) get_option( 'page_for_posts' ) ) : ?>
+		<div id="privacy-policy-page-warning" class="error inline"><p><?php _e( '<strong>Warning:</strong> these pages should not be the same as your Privacy Policy page!' ); ?></p></div>
+	<?php endif; ?>
 </fieldset></td>
 </tr>
 <?php endif; ?>