Privacy
Privacy
This page explains how your data is processed when you visit holonexus.de or contact me.
Controller
Dr. Jan-Hendrik Weinert, Holo Nexus, Kirschbaumweg 27a, 60489 Frankfurt am Main, Germany. For privacy questions or to exercise your rights, contact me at mail@holonexus.de.
Technical logs
The web server rotates its logs daily and retains at most 14 archived files alongside the current file. Retention depends on rotation days; during continuous operation this amounts to approximately 15 days. Additional website-container logs are overwritten when their size limit is reached; at most two files of 5 MiB each are retained. Entries relating to a specific security incident may be kept separately for investigation and legal claims for as long as needed. Logs are not analysed for visitor profiles or advertising.
Retention of enquiries
I retain your message for as long as needed to handle your enquiry or a resulting engagement. The data is then deleted unless statutory retention duties or the establishment, exercise or defence of legal claims require it to be kept. Statutory retention is based on Article 6(1)(c) GDPR. Retention for legal claims is based on Article 6(1)(f) GDPR.
Cookies, local files and animations
This website does not set its own cookies or use analytics tools or advertising trackers. Fonts, images and scripts are loaded from holonexus.de. Your light or dark mode choice is stored only in your browser (Local Storage) until you change it or clear the website data. It is not sent to the server. Language, scenario and animation-control choices are not stored persistently. Animations start by default, including on mobile devices, and can be paused using the Motion control. Your browser may cache website files in its usual cache. There is no automated decision-making or profiling within the meaning of Article 22 GDPR.
Links to other websites
Book websites, LinkedIn and event websites are included as ordinary links. This website does not load embedded content from those providers. A connection to another website is made when you follow a link; that website's privacy information then applies.
Your rights
Subject to the legal conditions, you can request access, rectification, erasure, restriction of processing and data portability under Articles 15 to 20 GDPR. Where processing is based on your consent, you can withdraw it at any time with effect for the future. Contact mail@holonexus.de to exercise these rights.
Right to object
Where processing is based on Article 6(1)(f) GDPR, you can object on grounds relating to your particular situation under Article 21 GDPR. I will then stop processing the data concerned unless compelling legitimate grounds or legal claims justify continued processing.
Right to complain
You can lodge a complaint with a data protection supervisory authority, particularly where you live, work or believe an infringement has occurred (Article 77 GDPR). The authority responsible for my location is the Hessian Commissioner for Data Protection and Freedom of Information: Wilhelmstraße 7, 65185 Wiesbaden, Germany. See the HBDI complaint information.
Last updated: 12 September 2026. This policy applies to holonexus.de and www.holonexus.de.