diff --git a/examples/dump.php b/examples/dump.php
index 3ce4471f7..6fb4649d8 100644
--- a/examples/dump.php
+++ b/examples/dump.php
@@ -1,3 +1,10 @@
+<?php
+#!! IMPORTANT: 
+#!! this file is just an example, it doesn't incorporate any security checks and 
+#!! is not recommended to be used in production environment as it is. Be sure to 
+#!! revise it and customize to your needs.
+die("Make sure that you enable some form of authentication before removing this line.");
+?>
 <!DOCTYPE html>
 <html xmlns="http://www.w3.org/1999/xhtml" dir="ltr">
 <head>
diff --git a/examples/jquery/s3.php b/examples/jquery/s3.php
index de51d57a3..bd31d718c 100644
--- a/examples/jquery/s3.php
+++ b/examples/jquery/s3.php
@@ -1,4 +1,10 @@
-<?php 
+<?php
+#!! IMPORTANT: 
+#!! this file is just an example, it doesn't incorporate any security checks and 
+#!! is not recommended to be used in production environment as it is. Be sure to 
+#!! revise it and customize to your needs.
+die("Make sure that you enable some form of authentication before removing this line.");
+
 /* 
 In order to upload files to S3 using Flash runtime, one should start by placing crossdomain.xml into the bucket.
 crossdomain.xml can be as simple as this:
diff --git a/examples/upload.php b/examples/upload.php
index 4b40cd8cc..f653efa80 100644
--- a/examples/upload.php
+++ b/examples/upload.php
@@ -1,4 +1,9 @@
 <?php
+#!! IMPORTANT: 
+#!! this file is just an example, it doesn't incorporate any security checks and 
+#!! is not recommended to be used in production environment as it is. Be sure to 
+#!! revise it and customize to your needs.
+die("Make sure that you enable some form of authentication before removing this line.");
 
 require_once("handler-php/PluploadHandler.php");
 
diff --git a/package.json b/package.json
index a525a0f2b..774f77fb4 100644
--- a/package.json
+++ b/package.json
@@ -1,8 +1,8 @@
 {
     "name": "plupload",
     "description": "Plupload is a JavaScript API for dealing with file uploads it supports features like multiple file selection, file type filtering, request chunking, client side image scaling and it uses different runtimes to achieve this such as HTML 5, Silverlight and Flash.",
-    "version": "3.1.2",
-    "releaseDate": "2018-02-20",
+    "version": "3.1.3",
+    "releaseDate": "2021-03-29",
     "author": "Ephox",
     "contributors": [{
         "name": "Davit Barbakadze",
diff --git a/src/moxie b/src/moxie
index 09eaf578f..1d816b071 160000
--- a/src/moxie
+++ b/src/moxie
@@ -1 +1 @@
-Subproject commit 09eaf578f38480dc4b8e2017c473c496883b6168
+Subproject commit 1d816b071c7f6e29cc825cf97dcd089985106cbd
