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Building Secure LLM Applications: OWASP Top-10 in Practice

A comprehensive guide to implementing OWASP LLM Top-10 security guidelines in production AI systems, with real-world examples and code snippets.

15 · xii · 20258 min read
  • AI Security
  • OWASP
  • LLMs
  • Best Practices

Security in LLM applications isn't optional—it's essential. Here's how I implement OWASP LLM Top-10 compliance in production systems.

Key Security Measures

1. Prompt Injection Mitigation

  • Input validation and sanitization
  • Output filtering
  • Structured prompts with clear boundaries

2. Secure API Design

  • Authentication and authorization
  • Rate limiting
  • Request validation

3. Data Privacy

  • PII detection and redaction
  • Secure data handling
  • Compliance with regulations

Implementation Example

def validate_input(user_input: str) -> str:
    # Sanitize input
    sanitized = sanitize_text(user_input)
    # Check for injection patterns
    if detect_injection(sanitized):
        raise SecurityError("Potential injection detected")
    return sanitized

Conclusion

Security should be built into every layer of your LLM application, from input validation to output filtering.

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