Low-code apps should log who did what, to which record and when, plus changes to the app itself. They should never log secrets, tokens, full personal records or payment data. Turn debug logging off in production, and keep logs somewhere the app maker cannot quietly edit.
Two failure modes
OWASP's Security Logging and Monitoring Failures (CD-SEC-10) describes two opposite problems.
- Under-logging. Platforms and ad hoc builds lack the audit trail normal software has. When critical actions are not captured, organizations cannot reconstruct events in an incident, and repudiation is left incomplete.
- Over-logging. Builders switch on verbose settings for troubleshooting and capture sensitive data meant only for runtime. Left active in production or poorly protected, those logs expose confidential data and may violate privacy rules.
AI-generated apps with minimal review, or apps spanning several services and environments, fragment the trail further.
What to log
| Event | Fields |
|---|---|
| Sign in and access to sensitive records | User, time, record identifier, result |
| Create, update, delete of records | User, time, record identifier, which fields changed |
| Sharing and permission changes | Actor, target, old and new audience |
| App changes | Who published a change, when, and a version identifier |
| Connection changes | Who added or edited a connection, to which service |
| Failures | Error class and request identifier, not payload |
What never to log
- Passwords, API keys, tokens and session identifiers.
- Full payment card or bank details.
- Full personal records when an identifier would do.
- Raw request bodies from forms that hold sensitive fields.
When you must keep a value for debugging, mask it and set a short retention.
Make the log useful
- Use a consistent format so events from different apps can be searched together.
- Include a request or correlation identifier across flows and sub-flows.
- Send logs to a central store with limited write access.
- Set retention based on need, and remove debug logs promptly.
- Test: pick an action, then try to find it in the log within five minutes.
OWASP's scenario for a change-related failure is a business-critical app that stops after several overlapping changes, and nobody can tell which developer introduced the fault. A change log with identities avoids that.
Review questions before launch
- Can we reconstruct who did what for the last thirty days?
- Is any secret or full record visible in the log today?
- Is debug mode off?
- Who can read or alter the logs?
For API level detail, see API security logging: which fields to record.
A quick example
A claims intake app logs the full submitted form while the builder debugs a field mapping, then goes live with that setting still on. Weeks of personal data now sit in a log that more people can read than the app itself. The fix is a pre-launch step: set the log level, sample the log for sensitive values and record the owner of the log store.
Where Safeguard fits
Safeguard's compliance and evidence automation helps engineering teams collect evidence from systems they run. Low-code platforms need their own audit logging turned on and exported. Free scan: https://gold.safeguard.sh/scan.
Quick check
Is more logging always safer?
No. Excess logging can expose sensitive data. Log actions and identifiers, not secrets or full records.
Who should be able to edit logs?
Nobody who builds the app. Keep logs in a store with restricted write access.
Sources
Last reviewed: 19 October 2026.
