What is PII redaction?
PII redaction is the process of detecting and removing or masking personally identifiable information, such as names, email addresses, phone numbers, ID numbers and card details, from documents, conversations, logs or AI prompts, to protect privacy and meet compliance requirements.
Example
"My card 4111 1111 1111 1111 was charged" → "My card [CARD] was charged".
Where to redact
| Place | Why |
|---|---|
| Support transcripts | Privacy |
| Logs | Security |
| AI prompts | Limit data exposure |
| Analytics exports | Compliance |
Methods
Pattern matching, named-entity recognition models, and masking or tokenization.
