A chargeback fraud record holds the dispute data a merchant keeps when a payment is reversed. GDPR Recital 26 treats data as anonymous only when no person can be singled out. anonym.plus removes cardholder names, card numbers, and contacts on your device, so the trend stays visible without the people.
When this applies
An analytics team studies repeat disputes to flag friendly fraud. You hand them a cleaned set that keeps the pattern, not the cardholder.
How anonym.plus handles it
- Open the dispute in anonym.plus on your device.
- The tool flags cardholder names and card numbers.
- Local OCR reads a scanned dispute letter.
- Turn the name map OFF for true anonymity.
- Replace each identifier with a label.
- Save the clean record locally.
What you need to provide
- The dispute record (PDF, DOCX, or scan).
- An operator (Replace, with the name map off).
- Optional batch for many disputes at once.
PII & financial identifiers detected
| Category | anonym.plus entity type | Example |
|---|---|---|
| Names | PERSON | Tom Glaze → [CARDHOLDER] |
| Financial | CREDIT_CARD | 4111 1111 ... → ****1111 |
| Amounts | MONEY | $240 reversed → [AMOUNT] |
| Contact | EMAIL_ADDRESS | tom@example.com → [EMAIL] |
| Contact | PHONE_NUMBER | (503) 555 2210 → [PHONE] |
| Dates | DATE_TIME | dispute 05/2026 → [DATE] |
Compliance achieved
- Targets the anonymity bar in GDPR Recital 26.
- Card numbers are masked to the last four digits.
- True anonymity needs the reversible name map turned off.
- Offline work keeps cardholder data off any server.
Anonymize chargeback fraud records offline — see plans & start free →
Limitations & cautions
Recital 26 says the data is personal while anyone can re-identify it. Keep the name map off for analytics. A small merchant plus an exact amount and date can still narrow to one buyer, so review the residual fields.
Frequently asked questions
How much of a card number stays after the pass?
Only the last four digits. The Mask operator hides the rest while the trend data stays usable.
Is the analytics set truly anonymous?
Only with the name map off and free-text clues checked. Recital 26 sets that bar; the tool helps you meet it.
Does the record leave my device?
No. The app is offline, so dispute data stays local.