Privacy Policy

Last updated: 2026-07-22

Controller

The controller for the processing described here is Ilja Bytschok-Edler von Hoessle, sole proprietor (see the Imprint). Contact: hello@ilja.tax.

What I process and why

Contact and quote requests. When you write to me or use the form, I receive the details you submit (such as your email and your message) and use them only to reply and prepare a quote. There is no account, login, or file upload on this site. Legal basis: Art. 6(1)(b) and 6(1)(f) GDPR.

Engagement data. If you engage me, you send the data needed for the work (such as exchange exports and wallet addresses). I use it only to produce your documentation and keep it stored end-to-end encrypted on Proton Drive (Proton AG, Switzerland). It is deleted once the contractual obligations are fulfilled, and immediately on request. I never sell or share it. Legal basis: Art. 6(1)(b) GDPR.

Website operation.The server keeps short-lived logs (IP, request, timestamp) for security. The site sets a single technically necessary cookie (NEXT_LOCALE) that stores your language choice; it is not used for tracking. No analytics are used. Legal basis: Art. 6(1)(f) GDPR; § 25(2) no. 2 TDDDG.

Hosting and transfers

The site is hosted on a server in the EU; the hosting provider processes technical data (such as server logs) on my behalf. Email runs through Proton Mail and engagement data is stored on Proton Drive (both Proton AG, Switzerland); the European Commission has issued an adequacy decision for Switzerland (Art. 45 GDPR).

Retention

I keep contact requests only as long as needed to handle them and meet legal record-keeping duties. Engagement data (raw data and intermediate calculations) is deleted once the contractual obligations are fulfilled, and immediately on request. Only the final documentation and the methodology version are retained. Server logs are kept only briefly.

Your rights

Under the GDPR you may request access to, correction of, or deletion of your data, restrict or object to processing, and receive your data in a portable format. You may also lodge a complaint with your data protection authority. To exercise any of these, email hello@ilja.tax.