Privacy Policy

1. General Information

We take the protection of your personal data very seriously.
This Privacy Policy explains how we collect, use, and protect your data when
you visit this website, in accordance with the EU General Data Protection
Regulation (GDPR) and applicable German data protection laws.

2. Name and Contact Details of the Data Controller

Data Controller according to Art. 4(7) GDPR:
Markus Anton Stefan
Kiautschoustraße 17
13353 Berlin
Germany
Email: markus.stefan@hotmail.com

3. Data Collection on Our Website

a) Server Log Files

When you visit our website, your browser automatically sends
information to our server. This information is temporarily stored in a log file
and may include:

• IP address
• Date and time of access
• Name and URL of the accessed file
• Referrer URL (previously visited page)
• Browser type and version
• Operating system

This data is processed for the purposes of ensuring a smooth
connection and website functionality. The legal basis is Art. 6(1)(f) GDPR
(legitimate interest in the stable operation of the website).

b) Contacting Us

If you contact us via email or contact form, we will store
your personal data (e.g., name, email address, message) for the purpose of
responding to your inquiry. The legal basis for this is Art. 6(1)(b) GDPR
(contract initiation) and/or Art. 6(1)(f) GDPR (legitimate interest in
responding to inquiries).

c) Cookies

This website uses technically necessary cookies to ensure proper functionality.

If additional cookies or tracking technologies are used, these will only be set with your explicit consent in accordance with Art. 6(1)(a) GDPR.

d) Analytics and Tracking

4. Your Rights Under the GDPR

As a data subject, you have the following rights under the
GDPR:

• Right
  of access to your personal data (Art. 15 GDPR)
• Right
  to rectification (Art. 16 GDPR)
• Right
  to erasure (“right to be forgotten”) (Art. 17 GDPR)
• Right
  to restriction of processing (Art. 18 GDPR)
• Right
  to data portability (Art. 20 GDPR)
• Right
  to object to processing (Art. 21 GDPR)
• Right
  to withdraw consent at any time (Art. 7(3) GDPR)
• Right
  to lodge a complaint with a supervisory authority (Art. 77 GDPR), in
  particular in the EU member state of your habitual residence, place of
  work, or place of the alleged infringement.

In Berlin, the responsible supervisory authority is:

Berliner Beauftragte für Datenschutz und Informationsfreiheit
Alt-Moabit 59-61
10555 Berlin
https://www.datenschutz-berlin.de/

5. Data Security

We take appropriate technical and organizational security
measures to protect your data against accidental or unlawful destruction, loss,
alteration, or unauthorized disclosure or access.

6. Third-Party Services and Integrations

a) Calendly

We use Calendly, a service provided by Calendly LLC, 88 North Avondale Road, Suite 603, Avondale Estates, GA 30002, USA, to schedule appointments.

When you book a meeting, personal data such as your name, email address, and any information you provide is processed by Calendly.

Calendly may transfer data to the United States. Data processing is based on Art. 6(1)(b) GDPR (contract initiation) and Art. 6(1)(f) GDPR (efficient appointment scheduling).

Further information:
https://calendly.com/privacy

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b) Contact form (WPForms)

If you use the contact form on this website, your data (name, email, message) will be processed to handle your inquiry.

The processing is based on Art. 6(1)(b) GDPR and Art. 6(1)(f) GDPR.

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c) Hosting

This website is hosted by GreenGeeks.

When you visit the website, server log files are collected (see section above). Data processing is based on Art. 6(1)(f) GDPR.

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d) Zoom (for video calls)

Video calls may be conducted using Zoom, a service provided by Zoom Video Communications Inc., USA.

If you participate in a call, your personal data may be processed by Zoom.

Further information:
https://zoom.us/privacy

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e) Google Fonts

This website uses Google Fonts to ensure a consistent display of fonts.

The fonts are loaded from Google servers, which may result in a transfer of your IP address to Google.

The use of Google Fonts is based on Art. 6(1)(f) GDPR (legitimate interest in a consistent and appealing presentation of the website).

Further information:
https://policies.google.com/privacy

7. Retention of Data

8. Changes to This Privacy Policy

We reserve the right to amend this Privacy Policy to comply
with current legal requirements or to reflect changes to our services. The
updated policy will apply to your next visit.

Last updated: 1st of April 2026