Instead of using generic, safe error messages, the application crafts detailed responses that can reveal internal information. This might include database structure, server paths, configuration secrets, user credentials, or personal data, giving attackers valuable clues for further exploitation. Developers often create these verbose errors during debugging and forget to replace them before release. To prevent this, always use a centralized, secure logging and error-handling system that separates detailed diagnostic information (for internal logs) from benign, user-facing messages. Never let internal exception details or system information leak to end-users, APIs, or client-side code.