secure-error-handling
Secure Error Handling - Preventing Information Leakage
The Error Message Problem
Error messages are designed to help developers debug. But in production, detailed errors help attackers more than they help users.
What Attackers Learn from Error Messages
Database structure:
Error: column 'credit_cards.number' does not exist
→ Attacker now knows you have a credit_cards table
File paths:
Error at /var/www/app/lib/payment.js:47
→ Attacker learns your directory structure
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