Need-to-Know Customer Flags
Pass a "how to handle this customer" flag to the front line as a proof — without exposing the reason. Only authorized staff can see the basis, and who set it when stays tamper-proof.
Who this is for.
For operators who run internal "handle with care" flags on customers with past trouble. Showing the reason to front-line/store staff invites leakage, defamation, friction with the individual, and inconsistent handling. But a setup where no one can trace the reason can't later show the flag was legitimate or untampered.
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Hospitality, retail & services, and membership businesses running customer-handling flags
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Finance teams that must share high-risk-customer or transaction-restriction flags with the front line
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Roles accountable for explaining the basis of a flag to complaints, subject-access requests, or audits
Hand over the source, or just the facts?
Change what reaches the AI, and the leakage risk goes with it.
- customer_id:
- C-9847
- name:
- Taro Yamada
- flag_type:
- flagged
- flag_reason:
- 3 prior complaints / abuse history
- score:
- 8/10
- assigned_by:
- Mgr. Tanaka
- holder:
- did:lemma:customer-C9847
- issuer:
- did:lemma:org-acme-frontdesk
- jurisdiction:
- JP
- licenseType:
- customer-handling
- disclosed:
- [handling_tier]
- hidden:
- [reason, score, history, assigner_id]
- handling_tier:
- flagged
- ZK verified:
- ✓ VALID
The front line receives only a "handling category" (flagged / normal) as a proof — never the reason or history. The basis is viewable via selective disclosure by authorized staff (e.g. managers) only, and who set the flag, when, and on what basis stays tamper-proof as provenance.
The front line not holding the reason is itself need-to-know minimization — reducing leakage and inconsistent judgment. And later, against complaints, subject-access requests, or audits, "the flag was legitimate" can be explained while opening the basis only as needed.
(A lawful operating design — flagging criteria, subject notification, retention — is assumed; we design this separately with legal.)
Choose on three criteria.
Only work that needs all three at once — pass without exposing, independent verification, tamper-proof — is Lemma's domain.
| Method | Pass without exposing | Independent verification | Tamper-proof |
|---|---|---|---|
| Access control only | △ | ✗ | ✗ |
| Masking / anonymization | △ | ✗ | ✗ |
| Encryption only | ✓ | ✗ | ✗ |
| Monitoring only | △ | ✗ | ✗ |
| Lemma (ZK proof)the only one with all 3 | ✓ | ✓ | ✓ |
What's next
We enter through AI-adoption and data-governance support and a PoC, and stay alongside you through to operations.
- A 30-minute review — identify flag operations where reason-disclosure risk and key-person dependence concentrate.
- Narrow to 1–2 handling categories to prove — e.g. "flagged," "normal." Reasons/history never reach the front line.
- Design disclosure scope and provenance — front line / authorized / audit disclosure levels, criteria, subject notification, retention (with legal).
- Prove one path via a (quote-based) PoC — confirm it works at one site.
- Hands-on support from rollout through operations — existing plan tiers (Civic / Critical / Compliance) serve only as a cost reference; the setup and pricing are designed together.
Tell us the one customer-handling flag where reason-disclosure risk is heaviest, in the first 30 minutes. No disclosure of sensitive data required.
The bigger picture
The bigger picture this use case belongs to.
We map use scenarios across industries and workflows by the four axes.
See use scenarios for Regulatory Attribute in Solutions →TRY LEMMA
Run it yourself.
No sales call needed — start hands-on with Lemma's products.