Sada · Data Processing Addendum

Data Processing Addendum

This addendum governs how Sada processes personal data on behalf of a clinic. It forms part of the Terms of Service and applies automatically to every clinic — you do not need to sign anything separately, though we are happy to sign a copy if your regulator or insurer asks.

Last updated 20 September 2026 · A signed PDF is available on request: hello@sadaclinic.com

Roles and scope

The clinic is the controller of the personal data it puts into Sada and of its patients' data. Digital Echoes, operating Sada, is the processor. Where Sada engages other companies to help provide the service, they act as our subprocessors.

This addendum covers personal data processed by Sada on the clinic's behalf. It does not cover data where we are the controller — for example the clinic's billing contact details — which is described in our Privacy Policy.

Details of the processing

ItemDetail
Subject matterProviding cloud practice-management software and patient messaging to the clinic
DurationFor as long as the clinic's account is active, plus the deletion periods below
Nature and purposeStorage, organisation, retrieval, transmission and deletion of clinic records; sending appointment reminders, follow-ups and, where enabled, AI-generated replies
Types of personal dataNames, phone numbers, email addresses, dates of birth, gender, addresses, file numbers; appointment, treatment and billing records; uploaded files including radiographs; WhatsApp message content and metadata; staff account details
Special categoriesHealth data — medical alerts, allergies, conditions, medications, charting, treatment plans, prescriptions and clinical images
Categories of data subjectThe clinic's patients (including, where the clinic records them, minors) and the clinic's own staff

Our obligations

Subprocessors

You give general authorisation for the subprocessors listed in our Privacy Policy — currently Railway (hosting), Cloudflare (file storage and backups), Anthropic (AI replies), Meta (WhatsApp delivery), and Speechmatics and Deepgram (voice-note transcription).

Security measures

The measures in force are described in detail under How it is protected. In summary: encryption in transit; salted scrypt password hashing; centrally enforced separation between clinics, verified by automated cross-tenant tests; role-based access control; an audit trail of key actions; automated off-site backups; and access by Sada staff limited to those who need it for support and maintenance.

We will not weaken these measures during the term.

Breach notification

If we become aware of a personal data breach affecting your data, we will notify you without undue delay and in any event within 72 hours, with the information we have: what happened, which categories and roughly how many records are affected, the likely consequences, and the measures we are taking. We will keep you updated as we learn more, and we will help you meet your own notification duties to regulators and patients.

Helping you meet your obligations

International transfers

Sada is hosted in the United States, and our AI and transcription providers process data on their own infrastructure, which may be in the United States or elsewhere. By using Sada you instruct us to make these transfers.

Where a transfer is subject to the GDPR or a comparable regime, we rely on appropriate safeguards, including the European Commission's Standard Contractual Clauses with the relevant provider. We will provide details on request.

Return and deletion

Audits

On reasonable notice, and no more than once a year unless a regulator or a breach requires otherwise, we will make available the information needed to demonstrate compliance with this addendum and respond to a reasonable security questionnaire. Where an on-site or third-party audit is required by your regulator, we will cooperate in good faith and agree scope and timing so that patient confidentiality and other clinics' data are protected.

Sada is operated by Digital Echoes, Lebanon.

To request a signed copy of this addendum, or to raise a data-protection question: hello@sadaclinic.com

See also: Privacy Policy · Terms of Service