Retail-banking export de-identification removes personal data from a core-system data dump. UK GDPR and the DPA 2018 limit how a bank shares holder information. anonym.plus strips each column on your machine, so the structure stays usable while customer data is shielded.
When this applies
A core dump holds customer, account, and contact columns for analytics. You must de-identify the set before it reaches a vendor or a model.
How anonym.plus handles it
- Point anonym.plus at the dump on your machine.
- It scans every column for the identifier set.
- Local OCR reads any imaged rows in the mix.
- Decide whether to keep or drop the name map.
- Apply Replace or Mask across the columns.
- Save the clean file locally.
What you need to provide
- The data dump (CSV, JSON, or PDF).
- An operator: Replace, Redact, or Mask.
- The name map ON to re-link, or OFF for true anonymity.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Names | PERSON | customer column → [PERSON] |
| Financial | UK_BANK_NUMBER | account column → ****0091 |
| Identifiers | UK_NINO | NINO column → [NINO] |
| Contact | PHONE_NUMBER | phone column → [PHONE] |
| Financial | IBAN_CODE | IBAN column → [IBAN] |
| Location | LOCATION | address column → [ADDRESS] |
Compliance achieved
- Limits sharing of holder data under UK GDPR & DPA 2018.
- Strips whole columns at once across a tabular file.
- Offline work keeps the core data off any server.
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Limitations & cautions
Stripping direct identifiers leaves quasi-identifiers, such as age, branch, and amount, that can re-link a person when combined. Assess that risk, and keep the name map off when the file must be truly anonymous.
Frequently asked questions
Can the tool de-identify a CSV file?
Yes. It flags every value in the customer, account, and contact columns, so you can strip them together in one pass.
Should I keep the name map for a data dump?
Keep it on only when you must re-link results later, and guard it. Turn it off for a one-way, anonymous result.
Does the data leave my machine?
No. The app is fully offline, so it is processed on your device only.