Privacy Policy

The controller within the meaning of the GDPR is:

CyberCitizen UG (haftungsbeschränkt)
Westerberg 4
27419 Sittensen
Germany

Phone: +49 4282 7899657
Email: legal@sielum.io

Managing Director: Hanno Horrmeyer

This website is hosted on servers operated by Hetzner Cloud GmbH, Industriestr. 25, 91710 Gunzenhausen, Germany, in data centres located in Falkenstein and Nuremberg (Germany). All personal data is processed exclusively within the EU/EEA. No data transfers to third countries occur. Sielum is not subject to the US CLOUD Act.

Server logs: When you access this website, your browser automatically transmits technical data to our server: IP address, date and time of access, requested URL, referrer URL, HTTP status code, data volume transferred, browser and operating system information. This data is used solely to ensure operation and to defend against attacks, and is deleted after 7 days. Legal basis: Art. 6(1)(f) GDPR (legitimate interest in IT security and operation).

Contact form / email inquiries: When you contact us, we process your name, email address, and message content to handle your inquiry. This data is deleted after the communication is complete, unless statutory retention obligations apply. Legal basis: Art. 6(1)(b) GDPR (pre-contractual measures) or Art. 6(1)(f) GDPR (legitimate interest).

Cookies: This website uses only technically necessary cookies required for operation (e.g. session cookies). These are deleted at the end of the browser session. No tracking cookies or third-party cookies are used.

When you register for a free trial of Sielum, we collect the following data:

• Email address
• Name
• Company name (optional)

This data is processed for the purpose of contract initiation and account provisioning. Legal basis: Art. 6(1)(b) GDPR. If no contract is concluded, this data is deleted after the trial period plus a 30-day grace period.

We do not share personal data with third parties unless this is necessary for the performance of a contract, we are legally obliged to do so, or you have given your explicit consent. Our data processors are contractually obligated to comply with the GDPR. The sub-processors we engage are listed at sielum.io/legal/sub-processors.

You have the following rights regarding your personal data:

• Right of access (Art. 15 GDPR)
• Right to rectification (Art. 16 GDPR)
• Right to erasure (Art. 17 GDPR)
• Right to restriction of processing (Art. 18 GDPR)
• Right to data portability (Art. 20 GDPR)
• Right to object (Art. 21 GDPR)

To exercise your rights, please contact: legal@sielum.io

You have the right to lodge a complaint with a supervisory authority. The authority competent for us is the State Commissioner for Data Protection Lower Saxony (LfD Niedersachsen), Prinzenstraße 5, 30159 Hanover, Germany, poststelle@lfd.niedersachsen.de.

This privacy policy is effective as of April 2026. We reserve the right to update it as the service evolves or legal requirements change. The current version is always available on this page.