diff --git a/users.py b/users.py
index fe9fce5..b57f2a9 100644
--- a/users.py
+++ b/users.py
@@ -3,6 +3,7 @@ import hashlib
 # User bezogene Funktionen
 
 import os
+from stat import S_IREAD, S_IWUSR
 import datetime
 import time
 import json
@@ -230,11 +231,14 @@ class user:
         data["archived"] = 1
         data["overtime"] = overtime
 
-        json_dict = json.dumps(data)
+        json_dict = json.dumps(data, indent=4)
 
         with open(filename, "w") as outputfile:
             outputfile.write(json_dict)
-
+        # Dateien auf readonly setzen
+        os.chmod(filename, S_IREAD)
+        filename_txt = f"{self.userfolder}/{year}-{month}.txt"
+        os.chmod(filename_txt, S_IREAD)
     def get_last_months_overtime(self, year, month):
         try:
             if int(month) == 1:
diff --git a/users/testuser1/2025-4.json b/users/testuser1/2025-4.json
index 1346aed..a4558cf 100644
--- a/users/testuser1/2025-4.json
+++ b/users/testuser1/2025-4.json
@@ -1,12 +1 @@
-{
-    "archived": 0,
-    "overtime": 0,
-    "absence": {
-        "7": "U",
-        "8": "K",
-        "9": "KK",
-        "10": "UU",
-        "11": "F",
-        "14": "EZ"
-    }
-}
\ No newline at end of file
+{"archived": 1, "overtime": -860821, "absence": {"7": "U", "8": "K", "9": "KK", "10": "UU", "11": "F", "14": "EZ"}}
\ No newline at end of file