Privacy policy
Last updated: May 22, 2026
In summary: Migra-PC uses a zero-knowledge architecture. Your files are encrypted on your PC with a key derived from your password; we keep neither your password nor your encryption keys. Technically, we cannot read your backups. This policy describes in detail the few pieces of data we process.
1. Data controller
The controller of your personal data is:
- MFT Andorra LLC
- 111 NE 1st Street, 8th Floor, Suite 89198, Miami, FL 33132, USA
- Email: info@mft-andorra.com
2. Data collected
2.1 Account data
- Email address
- Password (stored as a bcrypt hash on the Supabase server, never in clear)
- Session tokens
2.2 Payment data
Bank details are collected and stored directly by our payment provider Stripe Inc. MFT Andorra LLC never has access to full card numbers. We only keep a Stripe customer identifier, the payment history and the subscription status.
2.3 Backup data (encrypted)
The files, bookmarks, software lists and passwords you choose to back up are encrypted on your computer (AES-256-GCM) with a key derived from your password via Argon2id. Only encrypted blobs are sent to our servers. We cannot under any circumstances decrypt this data.
2.4 Technical data
- IP address (server logs, 30-day retention)
- Browser type, operating system (server logs)
- Date of last automatic backup
3. Purposes and legal bases
| Purpose | Legal basis |
|---|---|
| Account creation and management | Performance of contract |
| Backup and restoration of data | Performance of contract |
| Billing and accounting | Legal obligation |
| Security, fraud prevention | Legitimate interest |
| Sending operational emails (confirmation, reset) | Performance of contract |
4. Retention period
- Account data: for the entire duration of the subscription and up to 3 years after the last connection (then deletion).
- Backup data: for the entire duration of the active subscription. In case of payment cessation, 30 days in read-only mode, then permanent deletion.
- Billing data: 10 years (accounting obligation).
- Technical logs: 30 days.
5. Processors and recipients
To provide our service, we use the following processors, all bound by data processing agreements (DPA) compliant with GDPR:
| Provider | Role | Location |
|---|---|---|
| Supabase Inc. | Authentication, database | USA |
| Cloudflare Inc. | Encrypted file storage (R2) | Global |
| Stripe Inc. | Payments and billing | USA |
| Vercel Inc. | Site hosting | USA |
| Resend Inc. | Transactional email sending | USA |
6. Transfers outside the EU
Since some of our processors are established in the United States or elsewhere, data may be transferred outside the European Economic Area. These transfers are framed by the Standard Contractual Clauses of the European Commission or by other transfer mechanisms provided for by GDPR.
Note: stored files are encrypted with a key that only you possess. Even when transferred outside the EU, their content remains unreadable to anyone but you.
7. Cookies
The migra-pc.com site uses only cookies essential to the operation of the service (user session management, security). No advertising tracking or behavioral analysis cookies are used.
These essential cookies do not require your prior consent, in accordance with article 82 of the French Data Protection Act (Informatique et Libertés).
8. Your rights
In accordance with GDPR and the French Data Protection Act, you have the following rights over your personal data:
- Right of access (to know what data we process about you)
- Right of rectification (correct inaccurate data)
- Right to erasure (request deletion)
- Right to portability (receive your data in a structured format)
- Right to object to processing
- Right to restriction of processing
- Right to withdraw your consent at any time
To exercise these rights, contact us at info@mft-andorra.com specifying the email address of your account. We will respond within a maximum of 30 days.
9. Complaints
If you believe that your rights are not being respected, you may file a complaint with the competent data protection authority in your country of residence (in France, the CNIL: www.cnil.fr).