Prompt

<validation_injection>
Implement comprehensive input validation and sanitization:

**Input Validation Framework:**
- Validate all input parameters and formats
- Sanitize inputs to prevent injection attacks
- Check data ranges and business rules
- Provide clear validation error messages
- Implement both client and server-side validation

**Validation Best Practices:**
- Use whitelist validation when possible
- Validate data types and formats strictly
- Check authorization for data access
- Implement rate limiting for inputs
- Include comprehensive security scanning

Protect systems from invalid and malicious inputs.
</validation_injection>

INJECT THIS for input processing and data validation.