Information Disclosure

2 articles

Cybersecurity 06 Sep 2026 12 min read

Separate Public Errors from Diagnostic Details

An application fails while processing a request. The easiest implementation is often to return the exception message to the caller. That feels helpful during development because the response explains exactly what went wrong. In production, the same detail can expose information that the caller did not previously know: filesystem paths, database structure, dependency names, internal service addresses, object identifiers, configuration values, or fragments of sensitive input. A stack trace can reveal even more about how the application is assembled.

Cybersecurity Secure Coding

Cybersecurity 04 Sep 2026 9 min read

Keep Internal Error Details Out of Client Responses

When an application fails, developers need enough detail to diagnose the problem. The client usually does not. If the same exception text, stack trace, database error, filesystem path, or upstream response is sent to both places, an ordinary failure can become an information leak. The consequence is not that every leaked error immediately compromises a system. The problem is that internal details can reveal data, identifiers, software structure, trust relationships, or assumptions that were never meant to cross the application’s public boundary. They can also expose secrets when sensitive values have been included in an exception or diagnostic message.

Cybersecurity Secure Coding