Security

Last updated 1 October 2026

This page covers the Marbrook website and waitlist. Security details for the Marbrook products will be published before they open to customers.

The website

Every page is served over HTTPS.
The site sends strict browser security headers, including a content security policy that limits where scripts and data can load from.
Waitlist and contact forms can only add entries. The website cannot read back what anyone else has submitted.

It calculates in your browser; your figures stay on your device unless you share a link.

If you think you’ve found a security problem, tell us through the contact form.

Tell us who you are, and we’ll write when the product you care about opens.

Questions, removal or deletion requests, or a security concern. A person reads every message.