Last updated 7 September 2026. Mark Black, Baden 5400, Switzerland. Contact: info@markblack.ch
What this covers
This explains what happens to your information when you use markblack.ch — the free checks, the paid assessments, the booking system and the newsletter. It is written to meet the Swiss Federal Act on Data Protection (revDSG) and, where it applies to visitors in the EU, the GDPR.
What I collect
- Assessment answers. The responses you give in the Free System Check, the diagnostics and the Full Systemic Assessment, together with the name and email you enter so the blueprint can reach you.
- Booking details. Name, email and the slot you choose when you book a session.
- Payment details. Handled entirely by Stripe. I never see or store your card number.
- Website usage. Standard analytics — pages viewed, rough location, device and browser.
Why
To produce and send the result you asked for, to run and confirm bookings, to take payment, to send you email you have asked to receive, and to understand which parts of the site are useful.
Who processes it
I use a small number of service providers who process data on my behalf:
- Stripe — payments and refunds.
- Brevo — email delivery and newsletter.
- Google Analytics — website usage statistics.
- Hostinger — website hosting.
- Amelia and Forminator — booking and forms, running on this site.
Some of these are outside Switzerland, including in the United States. I do not sell your data, and I do not share your assessment results with anyone.
How long it is kept
Assessment results and booking records are kept while there is a reason to — so I can answer questions about work already done. Payment records are kept for ten years, as Swiss bookkeeping law requires. Newsletter details are kept until you unsubscribe.
What is not clinical
The assessments observe patterns. They are not a diagnosis, not a medical or psychological assessment, and are not a substitute for professional care.
Your rights
You can ask what I hold about you, ask for it to be corrected, ask for it to be deleted, or withdraw consent for email at any time. Email info@markblack.ch and I will respond within 30 days. Every newsletter carries an unsubscribe link.
Cookies
The site uses cookies needed to make it work, and analytics cookies to count visits. You can block cookies in your browser; parts of the site may then behave oddly.