Ask Fern now masks PII in browser
Opt-in PII masking for Ask Fern
Ask Fern can now mask personally identifiable information in a user's question. When enabled, structured PII (emails, phone numbers, SSNs, and credit card numbers) is redacted in the browser and never sent to Fern.
ai-search:
mask-pii: trueFetched July 17, 2026

