secure-coding-practices

The code is an instructional security example containing clearly labeled vulnerable snippets. If the vulnerable portions are executed, they can expose stack traces and query data to clients and write passwords or credit-card data to logs. The secure portions improve error disclosure and basic redaction but require stronger recursive sanitization, log-field minimization, control-character handling, and secure log storage and rotation. No evidence of malware, exfiltration, persistence, or intentional sabotage is present.