Email addresses and phone numbers to be hashed before storage

As a security improvement, MaxMind will begin hashing all email addresses and phone numbers submitted to the minFraud service before storing them on our servers. No changes to your integration are required. We will continue to accept plaintext values in API requests, and API responses will be unaffected.

Starting July 6, 2026, minFraud Interactive will display the hashed form of email addresses (plus the plaintext domain) and phone prefixes (the first 6-7 digits identifying country code and carrier) in place of full plaintext values, both in your transaction list and when drilling into individual transactions.

If your team relies on viewing full email addresses or phone numbers during manual review, you can opt in to plaintext display in minFraud Interactive by emailing product@maxmind.com.

You may opt in at any time after the transition date; however, plaintext display will apply only to transactions received after your opt-in date. Transactions processed after July 6 but before your opt-in will remain hashed.