Customer-onboarding dataset anonymisation removes personal data so a set can no longer identify a person. UK GDPR Recital 26 places truly anonymous data outside the rules. anonym.plus strips each identifier on your machine, and you turn the name map off for a one-way result.
When this applies
An onboarding export holds names, NINOs, IBANs, and contact rows for many customers. You must de-identify the set before it trains a model or feeds analytics.
How anonym.plus handles it
- Point anonym.plus at the export on your machine.
- It scans every column for the identifier set.
- Local OCR reads any scanned rows in the mix.
- Turn OFF the name map so the result is one-way.
- Apply Replace or Redact across the dataset.
- Save the anonymous set locally.
What you need to provide
- The export (CSV, JSON, or PDF).
- An operator with the name map OFF for true anonymity.
- Optional batch for many export files.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Names | PERSON | Carla Davies → [PERSON] |
| Identifiers | UK_NINO | QQ 41 29 08 C → [NINO] |
| Financial | IBAN_CODE | GB29 NWBK 6016 1331 9268 19 → [IBAN] |
| Contact | EMAIL_ADDRESS | davies@example.co.uk → [EMAIL] |
| Financial | UK_SORT_CODE | 60-16-13 → [SORT_CODE] |
| Dates | DATE_TIME | DOB 1982 → [DOB] |
Compliance achieved
- Aims for the anonymous-data standard in UK GDPR Recital 26.
- Turning the name map OFF removes the re-identification key.
- Offline work keeps the export off any server during the run.
Anonymise customer-onboarding datasets offline — see plans & start free →
Limitations & cautions
True anonymity under Recital 26 is hard: rare combinations of age, location, and amount can still single out a person. Removing direct identifiers is a start, not a guarantee. Assess re-identification risk before release.
Frequently asked questions
What makes a dataset anonymous under UK GDPR?
Recital 26 treats data as anonymous only when no one can re-identify a person by any reasonable means. Turn the name map off so no key links back.
Is pseudonymisation the same as anonymisation?
No. A reversible name map is pseudonymisation and still personal data. For Recital 26 anonymity, keep the map off.
Does the export leave my machine?
No. The app is fully offline, so the dataset is processed on your device only.