Data about reviewed clients
When you submit a review with a phone number or email address, we normalize the value (e.g. strip formatting, lowercase the email) and then compute a salted SHA-256 hash. Only the hash is stored.
Alongside the hash we store a short "display tail" — the last four digits of the phone, or the first letter of the local-part of the email plus the domain — so that you can visually confirm a match when you open a subject.
Optionally you may attach a first name + last initial (e.g. "Jane S."). Full last names are rejected by the API. We do not accept addresses, workplaces, social-media handles, or government identifiers.