diff --git a/.env.example b/.env.example
index ba7b43e..a912b2c 100644
--- a/.env.example
+++ b/.env.example
@@ -2,7 +2,7 @@
 
 # Обязательно: сильный случайный секретный ключ
 # Пример генерации: openssl rand -hex 32
-SECRET_KEY=change-me-in-production
+SECRET_KEY=
 
 # Базовый URL приложения (без слэша в конце), используется в QR-кодах
 BASE_URL=https://your-domain.example.com
diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..e3086f6
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,20 @@
+Proprietary License
+
+Copyright (c) 2026 InviteMe
+
+All rights reserved.
+
+This software and associated documentation files (the "Software") are the
+proprietary and confidential information of InviteMe. The Software is protected
+by copyright law and international treaties.
+
+Unauthorized access, use, copying, modification, merger, publication,
+distribution, sublicensing, sale, transfer, reverse engineering, decompilation,
+or disassembly of the Software, in whole or in part, is strictly prohibited
+without prior written permission from the copyright holder.
+
+The Software is provided "AS IS", without warranty of any kind, express or
+implied, including but not limited to the warranties of merchantability,
+fitness for a particular purpose and noninfringement.
+
+For licensing inquiries, please contact the copyright holder.
diff --git a/README.md b/README.md
index 797d4fe..35f7ab8 100644
--- a/README.md
+++ b/README.md
@@ -21,7 +21,7 @@
 Требования: установленный Docker и Docker Compose.
 
 ```bash
-git clone https://git.mycloud24.ru/insight/InviteMe.git
+git clone <URL-репозитория>
 cd InviteMe
 
 # Собрать и запустить
@@ -37,7 +37,7 @@ docker compose up -d --build
 Требования: Python 3.12.
 
 ```bash
-git clone https://git.mycloud24.ru/insight/InviteMe.git
+git clone <URL-репозитория>
 cd InviteMe
 
 python -m venv venv
@@ -101,4 +101,4 @@ InviteMe/
 
 ## Лицензия
 
-Проект распространяется как есть для внутреннего использования.
+См. файл [LICENSE](LICENSE).
diff --git a/app/__init__.py b/app/__init__.py
index a5b0afb..4a7c02f 100644
--- a/app/__init__.py
+++ b/app/__init__.py
@@ -20,6 +20,13 @@ def create_app(config_class=Config):
     app = Flask(__name__)
     app.config.from_object(config_class)
 
+    secret_key = app.config.get("SECRET_KEY", "")
+    if not secret_key or secret_key == "change-me-in-production":
+        raise RuntimeError(
+            "SECRET_KEY не задан или равен значению по умолчанию. "
+            "Задайте уникальный секретный ключ через переменную окружения SECRET_KEY или файл .env."
+        )
+
     # Ensure upload directories exist
     os.makedirs(app.config["PHOTO_FOLDER"], exist_ok=True)
     os.makedirs(app.config["QR_FOLDER"], exist_ok=True)
diff --git a/app/templates/admin/email_settings.html b/app/templates/admin/email_settings.html
index 1f3325a..2ec9306 100644
--- a/app/templates/admin/email_settings.html
+++ b/app/templates/admin/email_settings.html
@@ -68,7 +68,7 @@
                         <div class="mb-4">
                             <label for="ews_url" class="form-label">EWS URL</label>
                             <input type="text" class="form-control" id="ews_url" name="ews_url" value="{{ settings.ews_url or '' }}" placeholder="https://mail.company.com/EWS/Exchange.asmx">
-                            <div class="form-text text-muted">URL вида <code>https://mail.integrita.ru/EWS/Exchange.asmx</code></div>
+                            <div class="form-text text-muted">URL вида <code>https://mail.company.com/EWS/Exchange.asmx</code></div>
                         </div>
                     </div>
 
@@ -88,7 +88,7 @@
                         <div class="row">
                             <div class="col-md-8 mb-3">
                                 <label for="imap_server" class="form-label">IMAP-сервер</label>
-                                <input type="text" class="form-control" id="imap_server" name="imap_server" value="{{ settings.imap_server or '' }}" placeholder="mail.integrita.ru">
+                                <input type="text" class="form-control" id="imap_server" name="imap_server" value="{{ settings.imap_server or '' }}" placeholder="imap.example.com">
                             </div>
                             <div class="col-md-4 mb-3">
                                 <label for="imap_port" class="form-label">Порт</label>
diff --git a/app/templates/base.html b/app/templates/base.html
index e07a339..f21a477 100644
--- a/app/templates/base.html
+++ b/app/templates/base.html
@@ -7,7 +7,6 @@
     <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/css/bootstrap.min.css" rel="stylesheet">
     <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}">
     <link rel="icon" type="image/png" href="{{ url_for('static', filename='images/inviteme_logo.png') }}">
-    <!-- InviteMe — crafted for mycloud24.ru -->
 </head>
 <body>
     <nav class="navbar navbar-expand-lg navbar-dark">
@@ -81,9 +80,5 @@
     <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.2/dist/js/bootstrap.bundle.min.js"></script>
     {% block scripts %}{% endblock %}
 
-    <div class="easter-egg-star" title="о создателе">
-        ★
-        <span class="ee-tooltip">crafted for mycloud24.ru</span>
-    </div>
 </body>
 </html>
diff --git a/config.py b/config.py
index df667ce..073fb57 100644
--- a/config.py
+++ b/config.py
@@ -7,7 +7,7 @@ BASE_DIR = Path(__file__).resolve().parent
 load_dotenv(BASE_DIR / ".env")
 
 class Config:
-    SECRET_KEY = os.environ.get("SECRET_KEY") or "dev-secret-key-change-in-production"
+    SECRET_KEY = os.environ.get("SECRET_KEY") or ""
     BASE_URL = os.environ.get("BASE_URL") or None
     
     # Database
diff --git a/docker-compose.yml b/docker-compose.yml
index 897bc74..8be9f72 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -8,9 +8,9 @@ services:
     ports:
       - "8888:8888"
     environment:
-      # Замени на сильный случайный ключ перед запуском в продакшене
+      # Задай сильный случайный секретный ключ перед запуском.
       # Пример генерации: openssl rand -hex 32
-      - SECRET_KEY=change-me-in-production
+      - SECRET_KEY=
       - TIMEZONE=Europe/Moscow
     volumes:
       # База SQLite и загруженные файлы хранятся вне контейнера
diff --git a/requirements.txt b/requirements.txt
index c8e5bf1..57cdd0f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,13 +3,13 @@ Flask-SQLAlchemy==3.1.1
 Flask-Limiter==4.1.1
 Flask-WTF==1.3.0
 WTForms==3.2.2
-waitress==3.2.2
-Werkzeug==3.0.1
+waitress==3.0.2
+Werkzeug==3.0.3
 openpyxl==3.1.2
 qrcode==7.4.2
-Pillow==10.1.0
+Pillow==10.2.0
 python-dotenv==1.0.0
-Jinja2==3.1.2
+Jinja2==3.1.6
 svglib==2.2.0
 reportlab==5.0.1
 rlPyCairo==0.4.0
diff --git a/run.py b/run.py
index f61366d..dd7de05 100644
--- a/run.py
+++ b/run.py
@@ -3,4 +3,5 @@ from app import create_app
 app = create_app()
 
 if __name__ == "__main__":
-    app.run(host="0.0.0.0", port=5000, debug=True)
+    # debug=False для production; для разработки можно временно включить
+    app.run(host="127.0.0.1", port=5000, debug=False)