diff --git a/config/settings.py b/config/settings.py
index 482dd83..0935d88 100644
--- a/config/settings.py
+++ b/config/settings.py
@@ -1,12 +1,26 @@
 """Development settings for the teacher consultation website."""
+import os
 from pathlib import Path
 
 
 BASE_DIR = Path(__file__).resolve().parent.parent
 
-SECRET_KEY = "django-insecure-change-this-key-before-production"
-DEBUG = True
-ALLOWED_HOSTS = ["127.0.0.1", "localhost"]
+# --- Секреты только из окружения: без env приложение не стартует ---
+SECRET_KEY = os.environ.get("DJANGO_SECRET_KEY")
+if not SECRET_KEY:
+    raise RuntimeError(
+        "DJANGO_SECRET_KEY не задан. Установите переменную окружения "
+        "(например: python -c \"from django.core.management.utils "
+        "import get_random_secret_key; print(get_random_secret_key())\")."
+    )
+
+DEBUG = os.environ.get("DJANGO_DEBUG") == "1"
+
+ALLOWED_HOSTS = [
+    host.strip()
+    for host in os.environ.get("DJANGO_ALLOWED_HOSTS", "127.0.0.1,localhost").split(",")
+    if host.strip()
+]
 
 INSTALLED_APPS = [
     "django.contrib.admin",
@@ -15,6 +29,7 @@ INSTALLED_APPS = [
     "django.contrib.sessions",
     "django.contrib.messages",
     "django.contrib.staticfiles",
+    "axes",
     "consultations",
 ]
 
@@ -24,10 +39,16 @@ MIDDLEWARE = [
     "django.middleware.common.CommonMiddleware",
     "django.middleware.csrf.CsrfViewMiddleware",
     "django.contrib.auth.middleware.AuthenticationMiddleware",
+    "axes.middleware.AxesMiddleware",
     "django.contrib.messages.middleware.MessageMiddleware",
     "django.middleware.clickjacking.XFrameOptionsMiddleware",
 ]
 
+# --- django-axes: защита от брутфорса логина ---
+AXES_FAILURE_LIMIT = 5
+AXES_COOLOFF_TIME = 1  # часы
+AXES_RESET_ON_SUCCESS = True
+
 ROOT_URLCONF = "config.urls"
 
 TEMPLATES = [
@@ -48,6 +69,12 @@ TEMPLATES = [
 WSGI_APPLICATION = "config.wsgi.application"
 ASGI_APPLICATION = "config.asgi.application"
 
+# django-axes: бэкенд аутентификации для защиты от брутфорса
+AUTHENTICATION_BACKENDS = [
+    "axes.backends.AxesStandaloneBackend",
+    "django.contrib.auth.backends.ModelBackend",
+]
+
 DATABASES = {
     "default": {
         "ENGINE": "django.db.backends.sqlite3",
@@ -55,7 +82,21 @@ DATABASES = {
     }
 }
 
-AUTH_PASSWORD_VALIDATORS = []
+AUTH_PASSWORD_VALIDATORS = [
+    {
+        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
+        "OPTIONS": {"min_length": 8},
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
+    },
+    {
+        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
+    },
+]
 
 LANGUAGE_CODE = "ru-ru"
 TIME_ZONE = "Europe/Astrakhan"
diff --git a/consultations/forms.py b/consultations/forms.py
index abfbb19..ac2686b 100644
--- a/consultations/forms.py
+++ b/consultations/forms.py
@@ -73,3 +73,9 @@ class ConsultationRequestForm(forms.ModelForm):
         if slot and requested_format not in (ConsultationRequest.Format.ANY, slot.format):
             self.add_error("format", f"Для выбранного времени доступен формат: {slot.get_format_display()}.")
         return cleaned_data
+
+    def clean_consent_given(self):
+        consent = self.cleaned_data.get("consent_given")
+        if not consent:
+            raise forms.ValidationError("Необходимо согласие на обработку персональных данных.")
+        return consent
diff --git a/requirements.txt b/requirements.txt
index ca6c5c5..4322ec8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,3 @@
 Django>=5.0,<6.0
+django-axes>=8.3.1