Your Logs Are Leaking Secrets — And You Don’t Even Know It Yet

#security #kotlin #android #cybersecurity

Your Logs Are Leaking Secrets — And You Don’t Even Know It Yet

Most developers underestimate what their logs reveal.

In 2025, with centralized observability and distributed systems everywhere, a single stray Log.d() or console.log() can leak sensitive data — tokens, PII, internal IDs — straight into your dashboards.

💥 Common mistakes still happening

Logging full API responses or request bodies
Leaving debug logs in release builds
Forgetting to sanitize user data or identifiers

🔐 What you should be doing

✅ Use structured JSON logs

✅ Mask or hash sensitive fields

✅ Strip debug logs with R8/ProGuard

✅ Automate CI/CD checks for unsafe keywords

✅ Store logs securely with encryption & retention policies