diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/robthree/twofactorauth/lib/Providers/Rng/CSRNGProvider.php b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/robthree/twofactorauth/lib/Providers/Rng/CSRNGProvider.php
new file mode 100644
index 0000000..8dba7fc
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/lib/vendor/robthree/twofactorauth/lib/Providers/Rng/CSRNGProvider.php
@@ -0,0 +1,14 @@
+<?php
+
+namespace RobThree\Auth\Providers\Rng;
+
+class CSRNGProvider implements IRNGProvider
+{
+    public function getRandomBytes($bytecount) {
+        return random_bytes($bytecount);    // PHP7+
+    }
+    
+    public function isCryptographicallySecure() {
+        return true;
+    }
+}
\ No newline at end of file