# Security ¶

Good security is vital to the health and success of any application. Unfortunately, many developers cut corners when it comes to security, either due to a lack of understanding or because implementation is too much of a hurdle. To make your Yii powered application as secure as possible, Yii has included several excellent and easy to use security features.

- Authentication
- Authorization
- Working with Passwords
- Cryptography
- Views security
- Auth Clients
- Best Practices
- Trusted proxies and headers