Minimize before securing
The safest sensitive data is data the product never collects. Define the verification claim, map each field to a purpose, and remove fields that do not change the decision. An email challenge may be sufficient for activation; a full identity document may be justified only for a higher-risk action. Proportionality reduces both user friction and breach exposure.
Keep raw documents, images, and face-related evidence in a specialized restricted system where possible. Pass a scoped result—status, method, date, required attributes, and policy version—to ordinary product systems. Avoid placing sensitive values in URLs, analytics, crash reports, support tickets, logs, or session replay.
Secure sessions and asynchronous decisions
Create verification sessions server-side and bind them to the intended user, action, risk tier, and expiration. Client credentials should be short-lived and scoped. The browser can render a provider component, but it must never be the final authority that unlocks a protected action.
Authenticate provider webhooks, validate timestamps and environment, prevent replay, deduplicate event IDs, and process events through a durable queue. Reconcile sessions that remain pending beyond expected intervals. Use an internal state machine and stable reason categories so vendor labels do not leak into every product surface.
Limit reviewer and support access
Reviewers should see only the evidence required for assigned cases. Use strong authentication, role-based permissions, audited access, purpose-bound views, session timeouts, and escalation. Support agents usually need status and retry controls—not raw identity evidence. Separate approval authority from general customer support.
Prevent screenshots, downloads, and copying where practical. Review access logs for bulk viewing or out-of-scope access. Remove access promptly after role changes. Every human override should have a reason, actor, timestamp, and policy context.
Define and test retention
Create retention schedules by data category and purpose. Raw artifacts, extracted fields, model outputs, review notes, security events, and decision records may have different justified periods. Configure provider retention and deletion instead of assuming it matches internal policy.
Deletion must cover derivatives, exports, caches, and restored backups. Test the process with synthetic records and preserve evidence that it worked. User rights requests need identity-safe handling so an attacker cannot retrieve or delete another person’s verification data.
Govern vendors and changes
Evaluate processing regions, subprocessors, encryption, access, retention, deletion, incident notification, support handling, model-use terms, and continuity. Keep an internal policy and state layer so providers remain replaceable dependencies. Review model or platform updates before they change production outcomes.
Security is an operating practice, not a certification claim on this website. A real deployment requires threat modeling, architecture review, testing, monitoring, incident preparation, and qualified legal, privacy, compliance, and accessibility review for the actual service.