diff --git a/apps/jumpserver/conf.py b/apps/jumpserver/conf.py
index a0ecff1d1..c3622b61c 100644
--- a/apps/jumpserver/conf.py
+++ b/apps/jumpserver/conf.py
@@ -503,7 +503,7 @@ class Config(dict):
         'SECURITY_LUNA_REMEMBER_AUTH': True,
         'SECURITY_WATERMARK_ENABLED': True,
         'SECURITY_MFA_VERIFY_TTL': 3600,
-        'SECURITY_UNCOMMON_USERS_TTL': 90,
+        'SECURITY_UNCOMMON_USERS_TTL': 999,
         'VERIFY_CODE_TTL': 60,
         'SECURITY_SESSION_SHARE': True,
         'SECURITY_CHECK_DIFFERENT_CITY_LOGIN': True,
diff --git a/apps/users/tasks.py b/apps/users/tasks.py
index 4c7887c0f..d716806b2 100644
--- a/apps/users/tasks.py
+++ b/apps/users/tasks.py
@@ -86,6 +86,13 @@ def check_user_expired_periodic():
 @tmp_to_root_org()
 def check_unused_users():
     uncommon_users_ttl = settings.SECURITY_UNCOMMON_USERS_TTL
+    if not uncommon_users_ttl or not uncommon_users_ttl.isdigit():
+        return
+
+    uncommon_users_ttl = int(uncommon_users_ttl)
+    if uncommon_users_ttl <= 0 or uncommon_users_ttl >= 999:
+        return
+
     seconds_to_subtract = uncommon_users_ttl * 24 * 60 * 60
     t = timezone.now() - timedelta(seconds=seconds_to_subtract)
     last_login_q = Q(last_login__lte=t) | (Q(last_login__isnull=True) & Q(date_joined__lte=t))