Brain Leak takes your data seriously. Here is a plain-language explanation of what we collect, why, and what you can do about it.
Last updated: June 2026
Brain Leak is operated by Stefano Lei, based in Amsterdam, Netherlands.
For any privacy-related questions or requests, contact us at [email protected].
We collect only your email address, provided voluntarily when you subscribe to the Brain Leak newsletter.
We do not collect names, phone numbers, payment information, or any other personal data as part of the subscription process. We do not build profiles, track behaviour across other websites, or sell data to third parties.
Your email address is used for one purpose only: to send you the Brain Leak newsletter.
The legal basis for processing is consent (Article 6(1)(a) GDPR). You give that consent when you complete the subscription form. You can withdraw it at any time — see Your rights below.
Newsletter delivery is handled by Beehiiv (Beehiiv, Inc.), a third-party email service provider based in the United States. Beehiiv acts as a data processor on our behalf and only processes your data for the purpose of sending newsletters.
Transfers of personal data to the US are governed by Standard Contractual Clauses (SCCs) in accordance with GDPR Chapter V. You can review Beehiiv's privacy policy at beehiiv.com/privacy.
No other third party has access to your email address.
We retain your email address for as long as you remain subscribed to Brain Leak. When you unsubscribe, your data is deleted from our active mailing list. Any residual backup copies are purged within 30 days in accordance with Beehiiv's data retention policy.
Under the GDPR, you have the following rights:
You can ask us what personal data we hold about you and receive a copy of it.
If your data is inaccurate or incomplete, you can request that we correct it.
You can ask us to delete your personal data at any time. We will do so without undue delay.
You can request your data in a structured, machine-readable format.
You can withdraw your consent — and stop receiving the newsletter — at any time by clicking the unsubscribe link in any email, or by contacting us at [email protected]. Withdrawal does not affect the lawfulness of processing before the withdrawal.
If you believe your data is being handled unlawfully, you have the right to lodge a complaint with the Dutch Data Protection Authority (Autoriteit Persoonsgegevens) at autoriteitpersoonsgegevens.nl.
To exercise any of these rights, email [email protected]. We will respond within 30 days.
The Brain Leak website (getbrainleak.com) uses only essential technical cookies necessary for the site to function — for example, session cookies used by Ghost CMS. We do not use advertising cookies, third-party tracking pixels, or analytics cookies that identify individual users.
No cookie consent banner is shown because no non-essential cookies are set. If this changes, we will update this policy and implement a proper consent mechanism.
If we make material changes to this privacy policy — for example, if we add a new data processor or start collecting additional data — we will notify active subscribers by email before the change takes effect.
Minor clarifications (grammar, formatting) may be made without notice. The "Last updated" date at the top of this page always reflects the most recent revision.
We are happy to help. Reach us at [email protected] and we will respond within 30 days.
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