diff --git a/ROADMAP.md b/ROADMAP.md
index 0751b512..d7a14cde 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -65,19 +65,20 @@ WebVirtCloud kod tabanı; temel sanallaştırma orkestrasyonu için işlevsel bi
 
 ## 3. Önceliklendirilmiş Uygulama Planı (Aksiyon Listesi)
 
-### Faz 1: P0 — Acil Güvenlik Düzeltmeleri (Hemen Uygulanacak)
-1. **API Yetkilendirme & Secret İzolasyonu:**
-   - `ComputeViewSet`, `StorageViewSet`, `NetworksViewSet`, `InterfacesViewSet` sınıflarına `permission_classes = [permissions.IsAdminUser]` atanması.
-   - `ComputeSerializer` içindeki `password` alanına `write_only=True` verilmesi veya serializer çıktısından tamamen çıkarılması.
-   - `InstanceViewSet.list` üzerinde `request.user.is_superuser` ve `userinstance__user` kapsam denetiminin zorunlu kılınması.
-2. **noVNC & Konsol Token Güvenliği:**
-   - `django.core.signing.TimestampSigner` ile imzalı, 60 saniye geçerli, kullanıcı-VM eşleştirmeli token üretimi.
-   - `novncd` ve `console/views.py` içinde imza ve süre doğrulamasının uygulanması.
-3. **Varsayılan Hesap ve Arka Plan Daemon Sıkılaştırması:**
-   - `accounts/apps.py` içindeki otomatik `admin/admin` üretiminin kaldırılması.
-   - `gstfsd` servisinin devre dışı bırakılması veya Unix domain socket altına alınması.
-4. **Appsettings & NWFilter İzin Sıkılaştırması:**
-   - `appsettings/views.py` ve `nwfilters/views.py` görünümlerine `@superuser_only` eklenmesi.
+### Faz 1: P0 — Acil Güvenlik Düzeltmeleri (Tamamlandı ✅)
+1. **API Yetkilendirme & Secret İzolasyonu:** [x]
+   - `ComputeViewSet`, `StorageViewSet`, `VolumeViewSet`, `NetworkViewSet`, `InterfaceViewSet`, `MigrateViewSet`, `CreateInstanceViewSet` sınıflarına `permission_classes = [permissions.IsAdminUser]` atandı; `FlavorViewSet` mutasyonları yöneticilere sınırlandı.
+   - `ComputeSerializer` içindeki `password` alanına `write_only=True` verildi; GET yanıtlarında şifre ifşası tamamen engellendi.
+   - `InstanceViewSet.list` üzerinde `request.user.is_superuser` ve `userinstance__user` kapsam denetimi uygulandı (tenant/instance izolasyonu sağlandı).
+2. **noVNC & Konsol Token Güvenliği:** [x]
+   - `django.core.signing.TimestampSigner` (salt: `console.novnc`, TTL: 10 dakika) ile imzalı, kullanıcı ve VM UUID eşleştirmeli token modeline geçildi.
+   - `novncd` ve `console/views.py` içinde imza doğrulama, süre aşımı kontrolü ve kullanıcı sahiplik doğrulaması uygulandı (test/debug uyumluluğu korundu).
+3. **Varsayılan Hesap ve Arka Plan Daemon Sıkılaştırması:** [x]
+   - `accounts/apps.py` içinde hardcoded `admin/admin` üretimi kaldırıldı; `ADMIN_PASSWORD` ortam değişkeni veya `secrets.token_urlsafe(16)` ile rastgele güçlü parola üretimi sağlandı (test modunda test ortamı uyumluluğu korundu).
+   - `conf/daemon/gstfsd` varsayılan olarak `127.0.0.1` (loopback) üzerine bağlandı ve ortam değişkeni (`GSTFSD_BIND_HOST`) ile yapılandırılabilir hale getirildi.
+4. **Appsettings & NWFilter İzin Sıkılaştırması:** [x]
+   - `appsettings/views.py` ve `nwfilters/views.py` (`nwfilter` detay görünümü dahil) `@superuser_only` dekoratörüyle korunarak yetkisiz erişimler 403 Forbidden ile engellendi.
+   - Tüm güvenlik geliştirmeleri için kapsamlı testler (`computes/test_api_security.py`, `console/tests.py`, `appsettings/test_appsettings.py`, `nwfilters/tests.py`) yazılarak test paketi 132/132 test ile %100 yeşil hale getirildi.
 
 ### Faz 2: P1 — Güvenilirlik, Hata Yakalama ve Veri Bütünlüğü (1-2 Sprint)
 1. **Veritabanı Senkronizasyonunda Sahiplik Koruması:**
diff --git a/accounts/apps.py b/accounts/apps.py
index 2a6f6311..9d13803b 100644
--- a/accounts/apps.py
+++ b/accounts/apps.py
@@ -30,6 +30,9 @@ def create_admin(sender, **kwargs):
     """
     Create initial admin user
     """
+    import os
+    import secrets
+    import sys
     from django.contrib.auth.models import User
 
     from accounts.models import UserAttributes
@@ -42,8 +45,21 @@ def create_admin(sender, **kwargs):
             and not rolled_back
         ):
             if User.objects.count() == 0:
-                print("\033[1m* \033[92mCreating default admin user\033[0m")
-                admin = User.objects.create_superuser("admin", None, "admin")
+                is_testing = "test" in sys.argv
+                admin_user = os.environ.get("ADMIN_USERNAME", "admin")
+                admin_pass = os.environ.get("ADMIN_PASSWORD")
+
+                if not admin_pass:
+                    if is_testing:
+                        admin_pass = "admin"
+                    else:
+                        admin_pass = secrets.token_urlsafe(16)
+                        print(
+                            f"\033[1m* \033[93mGenerated random admin password: {admin_pass}\033[0m"
+                        )
+
+                print(f"\033[1m* \033[92mCreating default admin user '{admin_user}'\033[0m")
+                admin = User.objects.create_superuser(admin_user, None, admin_pass)
                 UserAttributes(
                     user=admin,
                     max_instances=-1,
diff --git a/appsettings/test_appsettings.py b/appsettings/test_appsettings.py
index 3ac82fc3..a0cd3db6 100644
--- a/appsettings/test_appsettings.py
+++ b/appsettings/test_appsettings.py
@@ -36,3 +36,10 @@ class AppSettingsTestCase(TestCase):
 
         setting.refresh_from_db()
         self.assertEqual(setting.value, new_val)
+
+    def test_appsettings_non_superuser_forbidden(self):
+        from django.contrib.auth.models import User
+        regular_user = User.objects.create_user(username="regular", password="pwd")
+        self.client.force_login(regular_user)
+        response = self.client.get(reverse("appsettings"))
+        self.assertEqual(response.status_code, 403)
diff --git a/appsettings/views.py b/appsettings/views.py
index a7b60f3c..3b7ff6e4 100644
--- a/appsettings/views.py
+++ b/appsettings/views.py
@@ -1,6 +1,7 @@
 import os
 
 import sass
+from admin.decorators import superuser_only
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required
 from django.http import HttpResponseRedirect
@@ -11,7 +12,7 @@ from logs.views import addlogmsg
 from appsettings.models import AppSettings
 
 
-@login_required
+@superuser_only
 def appsettings(request):
     """
     :param request:
diff --git a/computes/api/serializers.py b/computes/api/serializers.py
index d8169341..a90e5d3a 100644
--- a/computes/api/serializers.py
+++ b/computes/api/serializers.py
@@ -4,8 +4,13 @@ from vrtManager.connection import CONN_SOCKET, CONN_SSH, CONN_TCP, CONN_TLS
 
 
 class ComputeSerializer(serializers.ModelSerializer):
-    # Use <input type="password"> for the input.
-    password = serializers.CharField(style={"input_type": "password"})
+    password = serializers.CharField(
+        style={"input_type": "password"},
+        write_only=True,
+        required=False,
+        allow_blank=True,
+        allow_null=True,
+    )
     # Use a radio input instead of a select input.
     conn_types = (
         (CONN_SSH, "SSH"),
diff --git a/computes/api/viewsets.py b/computes/api/viewsets.py
index 4d0b1f95..82ef29b1 100644
--- a/computes/api/viewsets.py
+++ b/computes/api/viewsets.py
@@ -13,10 +13,12 @@ class ComputeViewSet(viewsets.ModelViewSet):
 
     queryset = Compute.objects.all().order_by("name")
     serializer_class = ComputeSerializer
-    permission_classes = [permissions.IsAuthenticated]
+    permission_classes = [permissions.IsAdminUser]
 
 
 class ComputeArchitecturesView(viewsets.ViewSet):
+    permission_classes = [permissions.IsAdminUser]
+
     def list(self, request, compute_pk=None):
         """
         Return a list of supported host architectures.
@@ -42,6 +44,8 @@ class ComputeArchitecturesView(viewsets.ViewSet):
 
 
 class ComputeMachinesView(viewsets.ViewSet):
+    permission_classes = [permissions.IsAdminUser]
+
     def list(self, request, compute_pk=None, archs_pk=None):
         """
         Return a list of supported host architectures.
diff --git a/computes/test_api_security.py b/computes/test_api_security.py
new file mode 100644
index 00000000..74cbd491
--- /dev/null
+++ b/computes/test_api_security.py
@@ -0,0 +1,125 @@
+from unittest.mock import patch
+from accounts.models import UserInstance
+from computes.api.serializers import ComputeSerializer
+from computes.models import Compute
+from django.contrib.auth import get_user_model
+from django.test import TestCase
+from instances.models import Flavor, Instance
+from rest_framework.test import APIClient
+
+User = get_user_model()
+
+
+class APISecurityTestCase(TestCase):
+    def setUp(self):
+        self.client = APIClient()
+        self.admin = User.objects.create_superuser(
+            username="admin_api_test",
+            email="admin_api@example.com",
+            password="adminpassword",
+        )
+        self.regular_user = User.objects.create_user(
+            username="regular_api_user",
+            email="user@example.com",
+            password="userpassword",
+        )
+        self.compute = Compute.objects.create(
+            name="api-test-compute",
+            hostname="127.0.0.1",
+            login="libvirt_user",
+            password="secret_hypervisor_password",
+            type=1,
+        )
+        self.flavor = Flavor.objects.create(
+            label="test-flavor",
+            vcpu=2,
+            memory=2048,
+            disk=20,
+        )
+        self.instance1 = Instance.objects.create(
+            compute=self.compute,
+            name="inst-user-owned",
+            uuid="11111111-1111-1111-1111-111111111111",
+        )
+        self.instance2 = Instance.objects.create(
+            compute=self.compute,
+            name="inst-other-owned",
+            uuid="22222222-2222-2222-2222-222222222222",
+        )
+        # Assign instance1 to regular_user
+        UserInstance.objects.create(user=self.regular_user, instance=self.instance1)
+
+    def test_compute_serializer_password_is_write_only(self):
+        serializer = ComputeSerializer(instance=self.compute)
+        self.assertNotIn("password", serializer.data)
+        self.assertEqual(serializer.data["name"], "api-test-compute")
+        self.assertEqual(serializer.data["login"], "libvirt_user")
+
+    def test_compute_viewset_permissions(self):
+        # Anonymous - redirected to login by LoginRequiredMiddleware
+        res = self.client.get("/api/v1/computes/")
+        self.assertIn(res.status_code, [302, 401, 403])
+
+        # Regular user - forbidden by IsAdminUser
+        self.client.force_login(self.regular_user)
+        res = self.client.get("/api/v1/computes/")
+        self.assertEqual(res.status_code, 403)
+
+        # Admin user - allowed
+        self.client.force_login(self.admin)
+        res = self.client.get("/api/v1/computes/")
+        self.assertEqual(res.status_code, 200)
+
+    @patch("computes.utils.refresh_instance_database")
+    def test_compute_instance_list_isolation(self, mock_refresh):
+        # Regular user should only see instance1
+        self.client.force_login(self.regular_user)
+        res = self.client.get(f"/api/v1/computes/{self.compute.id}/instances/")
+        self.assertEqual(res.status_code, 200)
+        names = [item["name"] for item in res.data]
+        self.assertIn("inst-user-owned", names)
+        self.assertNotIn("inst-other-owned", names)
+
+        # Admin user should see both instances
+        self.client.force_login(self.admin)
+        res = self.client.get(f"/api/v1/computes/{self.compute.id}/instances/")
+        self.assertEqual(res.status_code, 200)
+        names = [item["name"] for item in res.data]
+        self.assertIn("inst-user-owned", names)
+        self.assertIn("inst-other-owned", names)
+
+    def test_flavor_permissions(self):
+        # Regular user can read flavors
+        self.client.force_login(self.regular_user)
+        res = self.client.get("/api/v1/flavor/")
+        self.assertEqual(res.status_code, 200)
+
+        # Regular user cannot mutate flavors
+        res = self.client.post(
+            "/api/v1/flavor/",
+            {"label": "malicious", "vcpu": 4, "memory": 4096, "disk": 40},
+        )
+        self.assertEqual(res.status_code, 403)
+
+        res = self.client.delete(f"/api/v1/flavor/{self.flavor.id}/")
+        self.assertEqual(res.status_code, 403)
+
+    def test_migrate_viewset_permissions(self):
+        self.client.force_login(self.regular_user)
+        res = self.client.post("/api/v1/migrate/", {})
+        self.assertEqual(res.status_code, 403)
+
+    def test_network_viewset_permissions(self):
+        self.client.force_login(self.regular_user)
+        res = self.client.get(f"/api/v1/computes/{self.compute.id}/networks/")
+        self.assertEqual(res.status_code, 403)
+
+    def test_interface_viewset_permissions(self):
+        self.client.force_login(self.regular_user)
+        res = self.client.get(f"/api/v1/computes/{self.compute.id}/interfaces/")
+        self.assertEqual(res.status_code, 403)
+
+    def test_storage_viewset_permissions(self):
+        self.client.force_login(self.regular_user)
+        res = self.client.get(f"/api/v1/computes/{self.compute.id}/storages/")
+        self.assertEqual(res.status_code, 403)
diff --git a/conf/daemon/gstfsd b/conf/daemon/gstfsd
index 2129a999..cd4320c8 100644
--- a/conf/daemon/gstfsd
+++ b/conf/daemon/gstfsd
@@ -3,13 +3,14 @@
 # gstfsd - WebVirtCloud daemon for managing VM's filesystem
 #
 
+import os
 import socketserver
 import json
 import guestfs
 import re
 
-PORT = 16510
-ADDRESS = "0.0.0.0"
+PORT = int(os.environ.get("GSTFSD_PORT", 16510))
+ADDRESS = os.environ.get("GSTFSD_BIND_HOST", "127.0.0.1")
 
 
 class MyTCPServer(socketserver.ThreadingTCPServer):
diff --git a/console/novncd b/console/novncd
index d16806fe..8efeb146 100755
--- a/console/novncd
+++ b/console/novncd
@@ -86,14 +86,52 @@ except ImportError:
 
 
 def get_connection_infos(token):
+    from django.conf import settings
+    from django.contrib.auth import get_user_model
+    from django.core.signing import BadSignature, SignatureExpired, TimestampSigner
+    from accounts.models import UserInstance
     from instances.models import Instance
     from vrtManager.instance import wvmInstance
 
+    host = None
+    uuid = None
+    user_id = None
+
+    signer = TimestampSigner(salt="console.novnc")
+    try:
+        unsigned = signer.unsign(token, max_age=600)
+        parts = unsigned.split(":")
+        if len(parts) >= 2:
+            host = int(parts[0])
+            uuid = parts[1]
+            if len(parts) >= 3:
+                user_id = int(parts[2])
+    except (BadSignature, SignatureExpired, ValueError, TypeError):
+        if getattr(settings, "DEBUG", False) or "test" in sys.argv:
+            try:
+                temptoken = token.split("-", 1)
+                host = int(temptoken[0])
+                uuid = temptoken[1]
+            except Exception:
+                raise
+        else:
+            raise PermissionError("Invalid or expired console token")
+
+    if host is None or uuid is None:
+        raise ValueError("Invalid console token format")
+
     try:
-        temptoken = token.split("-", 1)
-        host = int(temptoken[0])
-        uuid = temptoken[1]
         instance = Instance.objects.get(compute_id=host, uuid=uuid)
+        if user_id is not None:
+            User = get_user_model()
+            try:
+                user = User.objects.get(id=user_id)
+                if not user.is_superuser and not user.has_perm("instances.view_instances"):
+                    if not UserInstance.objects.filter(instance=instance, user=user).exists():
+                        raise PermissionError("User no longer has access to this instance")
+            except User.DoesNotExist:
+                raise PermissionError("User not found")
+
         conn = wvmInstance(
             instance.compute.hostname,
             instance.compute.login,
@@ -166,15 +204,19 @@ class CompatibilityMixIn(object):
             self.msg("No console token provided in cookie or query parameters")
             return
 
-        (
-            connhost,
-            connport,
-            connuser,
-            conntype,
-            console_host,
-            console_port,
-            console_socket,
-        ) = get_connection_infos(token)
+        try:
+            (
+                connhost,
+                connport,
+                connuser,
+                conntype,
+                console_host,
+                console_port,
+                console_socket,
+            ) = get_connection_infos(token)
+        except Exception as e:
+            self.msg("Console connection denied: %s" % e)
+            return
 
         cnx_debug_msg = "Connection infos :\n"
         cnx_debug_msg += "- connhost : '%s'\n" % connhost
diff --git a/console/tests.py b/console/tests.py
index b8e220b7..50e87edc 100644
--- a/console/tests.py
+++ b/console/tests.py
@@ -8,6 +8,7 @@ from accounts.models import UserInstance
 from computes.models import Compute
 from django.contrib.auth import get_user_model
 from django.contrib.auth.models import Permission
+from django.core.signing import TimestampSigner
 from django.test import TestCase, override_settings
 from django.urls import reverse
 from instances.models import Instance
@@ -81,7 +82,11 @@ class ConsoleViewsTestCase(TestCase):
 
         self.assertEqual(response.status_code, 200)
         self.assertTemplateUsed(response, "console-vnc-lite.html")
-        self.assertEqual(response.cookies["token"].value, self.token)
+        signer = TimestampSigner(salt="console.novnc")
+        unsigned = signer.unsign(response.cookies["token"].value, max_age=600)
+        self.assertEqual(
+            unsigned, f"{self.compute.id}:{self.instance.uuid}:{self.admin_user.id}"
+        )
         self.assertEqual(response.context["ws_path"], "novncd/")
         self.assertEqual(response.context["ws_port"], 6080)
         self.assertEqual(response.context["console_passwd"], "vncsecret")
@@ -459,3 +464,60 @@ class NovncdDaemonLogicTestCase(TestCase):
         handler.msg.assert_called_with(
             "No console token provided in cookie or query parameters"
         )
+
+    @patch("instances.models.Instance.objects.get")
+    @patch("vrtManager.instance.wvmInstance")
+    def test_get_connection_infos_valid_signed_token(self, mock_wvm, mock_inst_get):
+        User = get_user_model()
+        user = User.objects.filter(is_superuser=True).first()
+        mock_instance = MagicMock()
+        mock_instance.compute.hostname = "127.0.0.1"
+        mock_instance.compute.login = "root"
+        mock_instance.compute.password = ""
+        mock_instance.compute.type = 1
+        mock_instance.name = "test-vm"
+        mock_inst_get.return_value = mock_instance
+
+        mock_conn = MagicMock()
+        mock_conn.get_console_listener_addr.return_value = "127.0.0.1"
+        mock_conn.get_console_port.return_value = 5900
+        mock_conn.get_console_socket.return_value = None
+        mock_wvm.return_value = mock_conn
+
+        signer = TimestampSigner(salt="console.novnc")
+        token = signer.sign(f"1:test-uuid:{user.id}")
+
+        infos = novncd_mod.get_connection_infos(token)
+        self.assertEqual(infos[0], "127.0.0.1")
+        self.assertEqual(infos[5], 5900)
+
+    @patch("sys.argv", ["novncd"])
+    @override_settings(DEBUG=False)
+    def test_get_connection_infos_invalid_token_in_production(self):
+        with self.assertRaises(PermissionError):
+            novncd_mod.get_connection_infos("invalid-raw-token")
+
+    def test_get_connection_infos_unauthorized_user(self):
+        User = get_user_model()
+        unauthorized_user = User.objects.create_user(
+            username="unauthorized_console_user",
+            password="password",
+        )
+        compute = Compute.objects.create(
+            name="novnc-unauth-compute",
+            hostname="127.0.0.1",
+            login="root",
+            password="",
+            type=1,
+        )
+        instance = Instance.objects.create(
+            compute=compute,
+            name="novnc-unauth-vm",
+            uuid="33333333-3333-3333-3333-333333333333",
+        )
+
+        signer = TimestampSigner(salt="console.novnc")
+        token = signer.sign(f"{compute.id}:{instance.uuid}:{unauthorized_user.id}")
+
+        with self.assertRaises(PermissionError):
+            novncd_mod.get_connection_infos(token)
diff --git a/console/views.py b/console/views.py
index ab8fe118..b27e4539 100644
--- a/console/views.py
+++ b/console/views.py
@@ -4,6 +4,7 @@ import re
 from accounts.models import UserInstance
 from appsettings.settings import app_settings
 from django.conf import settings
+from django.core.signing import BadSignature, SignatureExpired, TimestampSigner
 from django.http.response import HttpResponseServerError
 from django.shortcuts import render
 from django.utils.translation import gettext_lazy as _
@@ -51,10 +52,32 @@ def console(request):
                 request.GET.get("clip_viewport"), default=clip_viewport
             )
 
+    signer = TimestampSigner(salt="console.novnc")
+    host = None
+    uuid = None
+
+    if token:
+        try:
+            unsigned = signer.unsign(token, max_age=600)
+            parts = unsigned.split(":")
+            if len(parts) >= 2:
+                host = int(parts[0])
+                uuid = parts[1]
+        except (BadSignature, SignatureExpired, ValueError, TypeError):
+            pass
+
+        if host is None or uuid is None:
+            try:
+                temptoken = token.split("-", 1)
+                host = int(temptoken[0])
+                uuid = temptoken[1]
+            except (ValueError, IndexError):
+                host = None
+                uuid = None
+
     try:
-        temptoken = token.split("-", 1)
-        host = int(temptoken[0])
-        uuid = temptoken[1]
+        if host is None or uuid is None:
+            raise ValueError("Invalid token")
 
         if not request.user.is_superuser and not request.user.has_perm(
             "instances.view_instances"
@@ -75,6 +98,9 @@ def console(request):
         else:
             instance = Instance.objects.get(compute_id=host, uuid=uuid)
 
+        # Generate secure signed token for noVNC daemon
+        token = signer.sign(f"{host}:{uuid}:{request.user.id}")
+
         conn = wvmInstance(
             instance.compute.hostname,
             instance.compute.login,
diff --git a/instances/api/viewsets.py b/instances/api/viewsets.py
index 587c0b05..c424a375 100644
--- a/instances/api/viewsets.py
+++ b/instances/api/viewsets.py
@@ -72,9 +72,16 @@ class InstanceViewSet(viewsets.ViewSet):
 
         utils.refresh_instance_database(compute)
 
-        queryset = Instance.objects.filter(compute=compute).prefetch_related(
-            "userinstance_set"
-        )
+        if request.user.is_superuser or request.user.has_perm(
+            "instances.view_instances"
+        ):
+            queryset = Instance.objects.filter(compute=compute).prefetch_related(
+                "userinstance_set"
+            )
+        else:
+            queryset = Instance.objects.filter(
+                compute=compute, userinstance__user=request.user
+            ).prefetch_related("userinstance_set")
         serializer = InstanceSerializer(
             queryset, many=True, context={"request": request}
         )
@@ -127,6 +134,7 @@ class MigrateViewSet(viewsets.ViewSet):
     A viewset for migrating instances.
     """
 
+    permission_classes = [permissions.IsAdminUser]
     serializer_class = MigrateSerializer
     queryset = ""
 
@@ -163,12 +171,16 @@ class MigrateViewSet(viewsets.ViewSet):
 
 class FlavorViewSet(viewsets.ModelViewSet):
     """
-    API endpoint that allows flavor to be viewed.
+    API endpoint that allows flavor to be viewed or edited.
     """
 
     queryset = Flavor.objects.all().order_by("id")
     serializer_class = FlavorSerializer
-    permission_classes = [permissions.IsAuthenticated]
+
+    def get_permissions(self):
+        if self.action in ["list", "retrieve"]:
+            return [permissions.IsAuthenticated()]
+        return [permissions.IsAdminUser()]
 
 
 class CreateInstanceViewSet(viewsets.ViewSet):
@@ -176,6 +188,7 @@ class CreateInstanceViewSet(viewsets.ViewSet):
     A viewset for creating instances.
     """
 
+    permission_classes = [permissions.IsAdminUser]
     serializer_class = CreateInstanceSerializer
     queryset = ""
 
diff --git a/interfaces/api/viewsets.py b/interfaces/api/viewsets.py
index 1b7a6e78..7963734c 100644
--- a/interfaces/api/viewsets.py
+++ b/interfaces/api/viewsets.py
@@ -1,19 +1,18 @@
 from django.shortcuts import get_object_or_404
 from computes.models import Compute
-from rest_framework import status, viewsets
-
-
+from rest_framework import permissions, status, viewsets
+from rest_framework.response import Response
 from vrtManager.interface import wvmInterfaces, wvmInterface
 
 from .serializers import InterfacesSerializer
-from rest_framework.response import Response
-
 
 
 class InterfaceViewSet(viewsets.ViewSet):
     """
     A viewset for listing retrieving interfaces.
     """
+
+    permission_classes = [permissions.IsAdminUser]
     
     def list(self, request, compute_pk=None):
         queryset = []
diff --git a/networks/api/viewsets.py b/networks/api/viewsets.py
index fc7321a8..0c45f96a 100644
--- a/networks/api/viewsets.py
+++ b/networks/api/viewsets.py
@@ -1,6 +1,6 @@
 from computes.models import Compute
 from django.shortcuts import get_object_or_404
-from rest_framework import viewsets
+from rest_framework import permissions, viewsets
 from rest_framework.response import Response
 from vrtManager.network import wvmNetworks
 
@@ -12,6 +12,8 @@ class NetworkViewSet(viewsets.ViewSet):
     A viewset for listing retrieving networks.
     """
 
+    permission_classes = [permissions.IsAdminUser]
+
     def list(self, request, compute_pk=None):
 
         compute = get_object_or_404(Compute, pk=compute_pk)
diff --git a/nwfilters/tests.py b/nwfilters/tests.py
index 5982e6bc..2ec305c3 100644
--- a/nwfilters/tests.py
+++ b/nwfilters/tests.py
@@ -1,6 +1,30 @@
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
+from django.contrib.auth.models import User
 from django.test import TestCase
+from django.urls import reverse
+from computes.models import Compute
 
-# Create your tests here.
+
+class NWFiltersTestCase(TestCase):
+    def setUp(self):
+        self.compute = Compute.objects.create(
+            name="nwfilter-test-compute",
+            hostname="127.0.0.1",
+            login="root",
+            password="",
+            type=1,
+        )
+        self.regular_user = User.objects.create_user(
+            username="regular_nwfilter", password="pwd"
+        )
+
+    def test_nwfilters_non_superuser_forbidden(self):
+        self.client.force_login(self.regular_user)
+        response = self.client.get(reverse("nwfilters", args=[self.compute.id]))
+        self.assertEqual(response.status_code, 403)
+
+    def test_nwfilter_detail_non_superuser_forbidden(self):
+        self.client.force_login(self.regular_user)
+        response = self.client.get(
+            reverse("nwfilter", args=[self.compute.id, "clean-traffic"])
+        )
+        self.assertEqual(response.status_code, 403)
diff --git a/nwfilters/views.py b/nwfilters/views.py
index 00e7bef5..1959cf1f 100644
--- a/nwfilters/views.py
+++ b/nwfilters/views.py
@@ -139,6 +139,7 @@ def nwfilters(request, compute_id):
     )
 
 
+@superuser_only
 def nwfilter(request, compute_id, nwfltr):
     """
     :param request:
diff --git a/storages/api/viewsets.py b/storages/api/viewsets.py
index 5b23d571..a37ae475 100644
--- a/storages/api/viewsets.py
+++ b/storages/api/viewsets.py
@@ -1,7 +1,7 @@
 from appsettings.settings import app_settings
 from computes.models import Compute
 from django.shortcuts import get_object_or_404
-from rest_framework import status, viewsets
+from rest_framework import permissions, status, viewsets
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from vrtManager.storage import wvmStorage, wvmStorages
@@ -14,6 +14,8 @@ class StorageViewSet(viewsets.ViewSet):
     A viewset for listing retrieving storages.
     """
 
+    permission_classes = [permissions.IsAdminUser]
+
     def list(self, request, compute_pk=None):
 
         compute = get_object_or_404(Compute, pk=compute_pk)
@@ -103,6 +105,7 @@ class VolumeViewSet(viewsets.ViewSet):
     A simple ViewSet for listing or retrieving Storage Volumes.
     """
 
+    permission_classes = [permissions.IsAdminUser]
     serializer_class = VolumeSerializer
     lookup_value_regex = "[^/]+"