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Explain Yii’s “Security” component and its features.

Explain Yii’s “Security” component and its features.

Answer: Yii’s “Security” component provides a suite of tools and features aimed at enhancing the security of web applications. Key features include:

1. Hashing: Securely hashes passwords and sensitive data using algorithms like bcrypt.
2. Input Validation: Helps validate data to prevent common vulnerabilities like XSS (Cross-Site Scripting) and SQL injection.
3. Encryption: Provides methods for encrypting and decrypting data using various algorithms.
4. Token generation: Supports CSRF (Cross-Site Request Forgery) prevention by generating and validating tokens.
5. Security policies: Enables configuration of security settings to enforce application-specific rules.

These features collectively help developers build safer web applications by mitigating potential security risks.

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