diff --git a/tests/test_security.py b/tests/test_security.py
new file mode 100644
index 000000000..72ca3959d
--- /dev/null
+++ b/tests/test_security.py
@@ -0,0 +1,20 @@
+import unittest
+from security import SecurityManager  # Assuming you have a SecurityManager class
+
+class TestSecurityManager(unittest.TestCase):
+    def setUp(self):
+        self.security_manager = SecurityManager()
+
+    def test_encryption(self):
+        original_data = "Sensitive Data"
+        encrypted_data = self.security_manager.encrypt(original_data)
+        self.assertNotEqual(original_data, encrypted_data)
+
+    def test_decryption(self):
+        original_data = "Sensitive Data"
+        encrypted_data = self.security_manager.encrypt(original_data)
+        decrypted_data = self.security_manager.decrypt(encrypted_data)
+        self.assertEqual(original_data, decrypted_data)
+
+if __name__ == "__main__":
+    unittest.main()