Security and Runtime Errors

Learning Objectives

• Prevent runtime errors from becoming security issues.
• Handle failures without exposing internal details.
• Improve resilience under error conditions.

Risk Patterns

• Raw stack traces in API/UI responses.
• Crash loops from unhandled exceptions.
• Incomplete cleanup after failed operations.

Safe Handling Practices

• Return generic user-facing error messages.
• Log detailed traces internally.
• Fail closed for sensitive operations.

Summary

Reliable error handling protects both users and systems.