Welcome to our Privacy Policy
Your privacy is critically important to us.
At CryptoTxn, your privacy and self-custody are our highest priority. We are a Belgian company specialised in Bitcoin infrastructure, self-custody solutions, BTCPayServer integrations, and privacy-focused web development. We never take custody of any funds, never request or store your seed phrases, private keys, wallet balances, backup locations, or wallet owner identities.
This Privacy Policy explains exactly what personal data we collect, why we collect it, how we protect it, and what rights you have under the General Data Protection Regulation (GDPR).
1. Who we are Data Controller
CryptoTxn
Belgium
Email: hodl@cryptotxn.io
We act as the data controller for the personal data processed through https://cryptotxn.io.
2. What personal data we collect
We follow a strict zero-knowledge approach. We deliberately collect the minimum data necessary.
We may collect:
• Name and email address (when you contact us or request a quote)
• Company name and VAT number (only for invoicing and contract purposes)
• Technical information (IP address, browser type, device information) automatically collected by the website
• Communication preferences (Signal, SimpleX, or Mail)
We never collect, store, or learn:
• Seed phrases or private keys
• Wallet balances or transaction history
• Backup locations
• Any cryptocurrency you own
3. How we use your data
We only use your data to:
• Respond to your inquiries and provide consultations
• Prepare and send proposals or invoices
• Deliver the agreed services (website development, node/hardware setup, training)
• Improve our website and services (anonymous statistics only)
• Comply with legal obligations (tax, accounting)
4. Legal basis for processing (GDPR)
We process your data on the following lawful bases:
• Your consent (when you contact us)
• Performance of a contract (when you engage our services)
• Legitimate interests (running and improving our business)
• Legal obligations (invoicing, tax compliance)
You can withdraw consent at any time.
5. Sharing your data
We do not sell or rent your personal data to anyone.
We only share data with:
• Trusted service providers (e.g. accounting software, payment processor for our own invoices) who are bound by strict data processing agreements and GDPR
• Legal authorities only if we receive a valid court order or legal obligation (we will inform you unless prohibited by law)
All our processors are located in the EU or have equivalent protection.
6. International data transfers
We keep all data inside the European Economic Area (EEA) whenever possible. If any transfer outside the EEA is ever needed, we use GDPR-approved safeguards (Standard Contractual Clauses).
7. Data security & zero-knowledge commitment
We take security seriously. All sensitive communications happen exclusively via end-to-end encrypted channels (Signal, SimpleX Chat)
Because we operate under a strict zero-knowledge policy, even if our systems were ever compromised, there is nothing sensitive to leak — we simply do not possess your seeds, keys, or wallet information.
8. Data retention
We keep your personal data only as long as necessary:
• Contact inquiries → maximum 2 years
• Contract/invoice data → 7 years (legal requirement in Belgium)
• After a project ends we delete or anonymise data unless you request otherwise
9. Your GDPR rights
You have the right to:
• Access, correct, or delete your personal data
• Object to or restrict processing
• Receive your data in a portable format
• Withdraw consent at any time
• Lodge a complaint with the Belgian Data Protection Authority (DPA)
To exercise any of these rights, simply contact us via Signal, SimpleX, or Mail.
10. Cookies and website analytics
Our website uses essential cookies for basic functionality. We do not use advertising cookies or tracking that sells your data. You can manage or refuse cookies through your browser settings at any time.
11. Changes to this policy
We may update this Privacy Policy occasionally. The “Last updated” date at the top will be changed. We encourage you to review it periodically. Continued use of our services after changes constitutes acceptance.
