---
title:                                  Privacy
tagline:                                your personal data
date:                                   2020-10-23 12:00:00
description: >
                                        Protection of your personal data

tags:                                   [ Privacy, Statement ]
categories:                             [ Legal, Info ]

toc:                                    true
fam:                                    false
fam_menu_id:                            page_ctrl
scrollbar:                              false
indexed:                                false
exclude_from_search:                    true

permalink:                              /pages/public/legal/en/privacy/
regenerate:                             false

resources:                              []
resource_options:
  - attic:
      padding_top:                      400
      padding_bottom:                   50
      opacity:                          0.5
      slides:
        - url:                          /assets/images/modules/attics/lianhao-1920x1280.jpg
          alt:                          Photo by Lianhao Qu
          alignY:                       top
          badge:
            type:                       unsplash
            author:                     Lianhao Qu
            href:                       https://unsplash.com/@lianhao
---

// Attribute settings for section control
//
:cookies:
:revoke_cookie_consent:
:delete_cookies:
:content_permissions:
:server-logs:

The operators of this website take protection of your personal data extremely
seriously. We treat your personal data as confidential and comply with the
data protection legislation and this privacy policy.

It is generally *not* possible to use our website without disclosing personal
data. Where personal data (for example a user name, page visits) is collected
on our website, this is voluntary insofar as is possible. This data is never
disclosed to third parties without your express consent.

ifdef::cookies[]
== Cookies

A cookie is a commonly used automated data collection method. Cookies are
small text files that are placed on your computer or device by websites that
you visit in order to make websites work, or work more efficiently.

We, may our partners, make use of cookies, web beacons, pixel tags, scripts
or other similar technologies on our websites to improve the browsing
experience of our pages:

* Tailor information presented to you based on your browsing preferences,
  such as language, user account data, selected content and geographical
  region

* Collect statistics regarding your website usage

All personal data collected is stored in Cookies. We use different kinds
of cookies. Cookies are classified by its *lifespan* and the *domain* to
which it belongs.

Session Cookie::
Classified by *lifespan*. Necessary to provide you with services and
features available through our websites for the time of your visit. If you
leave our pages, these Cookies are automatically deleted by your web browser.
Without these cookies, services you may need cannot be provided.

Persistent Cookie::
Classified by *lifespan*. Necessary to provide you with services and
features available through our websites if you return the site. Without
these cookies, services cannot be provided.

First-party Cookie::
Classified by the *domain*. First-party Cookies are created by *this* site.
We are using both types: Session Cookies *and* Persistent Cookies.

Second-party Cookie::
Classified by the *domain*. Used to integrate services from *other* sites
like Github, Patreon, Disqus and others.

[NOTE]
====
If you do not wish to receive cookies you may be able to refuse them by
adjusting your browser settings to reject cookies. If you do so, we may
*not* unable to offer you *any* of our functionalities, services or support.
If you have previously visited our websites, you may also have to delete any
existing cookies from your browser.
====
endif::[]


ifdef::revoke_cookie_consent[]
== Revoke Cookie Consent

If you do *not* wish to receive *cookies* anymore from *this site*, you can
revoke the cookie consent you've given. Furthermore, you may be able to refuse
them by adjusting your *browser* settings to *reject on cookies*.

CAUTION: If you have previously visited our website -- or any pages this
session -- *and* agreed on the use of cookies, you may also have to
*delete* already existing *cookies* by your *browser* in order to clean
all cookies left.

++++
<div class="ml-0 mb-0">
  <button type="button" name="revokeCookieConsent" class="btn btn-primary btn-raised btn-flex mb-3" style="min-width: 25rem">
    <i class="toggle-button mdi mdi-toggle-switch-off mdi-lg mdi-md-bg-primary-50 mr-1"></i>
    Revoke Cookie Consent
  </button>
</div>

<script>
  var logger                      = log4javascript.getLogger('page.privacy');
  var cookie_names                = j1.getCookieNames();
  const cookie_consent_name       = cookie_names.cookie_consent;
  const cookie_user_session_name  = cookie_names.user_session;
  var user_state                  = j1.readCookie(cookie_user_session_name);
  var user_state_empty            = {};
  var pageChanged;

  // ---------------------------------------------------------------------------
  //  Initializer
  // ---------------------------------------------------------------------------
  $(document).ready(function() {
    if ( user_state.cookies_accepted == 'declined' ) {
      $('.toggle-button').toggleClass('mdi-toggle-switch-off mdi-toggle-switch');
    }
  });

  // ---------------------------------------------------------------------------
  //  EventHandler
  // ---------------------------------------------------------------------------
  $('button[name="revokeCookieConsent"]').on('click', function (e) {
    if ( user_state.cookies_accepted === 'declined' ) {
      logger.debug('Cookie Consent already DECLINED. Click event ignored');
      return true;
    } else {
      logger.debug('Enter Cookie Consent REVOKE dialog');
      $('#cookieRevokeCentralDanger').modal('show');
    }

    /* Manage button click events from "Cookie Consent REVOKE" dialog */
    $('a.btn').click(function() {
      if (this.id === 'revokeCookies') {
        logger.debug('User clicked revokeCookiesButton');
        user_state.cookies_accepted = 'declined';
        j1.writeCookie({
          name: cookie_user_session_name,
          data: user_state
        });

        $('.toggle-button').toggleClass('mdi-toggle-switch-off mdi-toggle-switch');

        // Hide cookie icon
        $('#cookie-state').css('display', 'none');
        return true;
      }
      if (this.id === 'remainCookies') {
        logger.debug('User clicked remainCookiesButton');
        return true;
      }
      return true;
    });
  });
</script>
++++
endif::[]

ifdef::delete_cookies[]
== Delete cookies

If you have previously visited our website -- or any pages this
session -- *and* agreed on the use of cookies, you may also have to
*delete* already existing *cookies* by your *browser* in order to clean
all cookies left.

By clicking the button below, all cookies related to *this* site will be
deleted.

++++
<div class="ml-0 mb-0">
  <button type="button" name="deleteCookies" class="btn btn-primary btn-raised btn-flex mb-3" style="min-width: 25rem">
    <i class="mdi mdi-cookie mdi-lg mdi-md-bg-primary-50 mr-1"></i>
    Delete Cookies
  </button>
</div>

<script>
  var logger       = log4javascript.getLogger('page.privacy');
  var cookie_names = j1.getCookieNames();

  // ---------------------------------------------------------------------------
  //  EventHandler
  // ---------------------------------------------------------------------------
  $('button[name="deleteCookies"]').on('click', function (e) {
    logger.debug('User clicked deleteCookiesButton');

    j1.removeCookie({
      name: cookie_names.user_session
    });
    j1.removeCookie({
      name: cookie_names.user_state
    });
    j1.removeCookie({
      name: cookie_names.app_session
    });

    logger.debug('cookies deleted: ' + cookie_names.user_session + ', ' + cookie_names.user_state);
    logger.debug('pass to (browser) default page');
    j1.goHome();

  });
</script>
++++
endif::[]

ifdef::server-logs[]
== Server log files

We gather certain information automatically by our webservers and store it in
log files. This information may include Internet protocol (IP) addresses,
browser type, internet service provider (ISP), referring/exit pages, operating
system, date/time stamp, and/or clickstream data.

These are:

* Browser type and version
* Operating System
* Referrer URL
* Hostname
* Timestamp of page requests

We may combine this log information with other information we collect about
you. We do this to improve services we offer you, to improve marketing,
analytics, or site functionality. We use Local Storage, such as HTML5, to
store content information and preferences. Third parties with whom we partner
to provide certain features on our website or to display advertising based
upon your web browsing activity also use HTML5 to collect and store information.
Various browsers may offer their own management tools for removing HTML5.
endif::[]

ifdef::google-analytics[]
== Use of Google Analytics

This website uses Google Analytics, a web analytics service provided by:
Anbieter ist die:

 Google Inc.
 1600 Amphitheatre Parkway Mountain View
 CA 94043
 USA

Google Analytics uses so called “cookies”, which are text files placed on
your computer to help the website analyze how users use the site. The
information generated by the cookie about your use of the website will be
transmitted to and stored by Google on servers in the United States. In
case IP-anonymization is activated on this website, your IP address will
be truncated within the area of member states of the European Union or
other parties to the Agreement on the European Economic Area. Only in
exceptional cases the whole IP address will be transferred to a Google
server in the USA and truncated there.

Google will use this information on behalf of the operator of this website
for the purpose of evaluating your use of the website, compiling reports on
website activity for website operators and providing them other services
relating to website activity and internet usage. The IP address conveyed by
your browser within the scope of Google Analytics, will not be associated
with any other data held by Google.

You may object to the use of cookies by selecting the appropriate settings
on your browser, however please note that if you do this you may not be able
to use the full functionality of this website. You can also avoid the
recording of data referring to your use of the website generated by cookies
(including your IP address) by Google as well as the processing of your
data by Google by downloading and installing the browser plug-in available
from the following link: http://tools.google.com/dlpage/gaoptout?hl=de
endif::[]


ifdef::facebook[]
== Use of Facebook Plug-ins

We have integrated plug-ins (Like-Button) by the social network *Facebook*,
provided by:

 Facebook Inc.
 1 Hacker Way
 Menlo Park
 California 94025
 USA

into our website.

You can identify these Facebook Plug ins by the Facebook logo or the "Like"
button on our website. You can find an overview of the Facebook plug ins
on: http://developers.facebook.com/docs/plug-ins/.

When you visit our website, the plug-in will establish a direct connection
between your browser and the Facebook server. Thereby Facebook will be informed
about your visit on our website with your IP address. If you click the Facebook
"Like" button while you are logged into your Facebook account, you can link
the contents of our website to your Facebook profile. Facebook can thereby
associate your visit to our website with your user account.

We would like to point out that, as the website provider, we possess no
knowledge of the contents of the transmitted data or its use by Facebook. You
can find further information on this topic in the Facebook privacy policy at
http://de-de.facebook.com/policy.php. If you do not want Facebook to be able
to associate your visit to our website with your Facebook user account,
please log out of your Facebook account before visiting our website.
endif::[]


ifdef::twitter[]
== Use of Twitter

We have integrated functions by the service provider Twitter into our website.
These functions are offered by:

 Twitter Inc.
 1355 Market Street
 Suite 900, San Francisco
 CA 94103
 USA

When using Twitter and the "re-tweet" function, the websites you have visited
will be linked to your Twitter account and made available to other users.
Data will also be transmitted to Twitter.

We would like to point out that as provider of the website we possess no
knowledge of the contents of the data transmitted or its use by Twitter.
You can find further information on this topic in the Twitter privacy
policy at http://twitter.com/privacy. You can change your Twitter privacy
settings in your account settings at http://twitter.com/account/settings.
endif::[]


ifdef::instagram[]
== Use of Instagram

Auf unseren Seiten sind Funktionen des Dienstes Instagram eingebunden. Diese
Funktionen werden angeboten durch die

  Instagram Inc.
  1601 Willow Road
  Menlo Park
  CA 94025
  USA

integriert. Wenn Sie in Ihrem Instagram Account eingeloggt sind können Sie
durch Anklicken des *Instagram Buttons* die Inhalte unserer Seiten mit
Ihrem *Instagram Profil* verlinken. Dadurch kann Instagram den Besuch unserer
Seiten Ihrem Benutzerkonto zuordnen. Wir weisen darauf hin, dass wir als
Anbieter der Seiten keine Kenntnis vom Inhalt der übermittelten Daten sowie
deren Nutzung durch Instagram erhalten.

Weitere Informationen hierzu finden Sie in der
http://instagram.com/about/legal/privacy/[Datenschutzerklärung von Instagram, window="_blank"].
endif::[]


ifdef::youtube[]
== Use of YouTube

Unsere Webseite nutzt Plugins der von Google betriebenen Seite *YouTube*.
Betreiber der Seiten ist die

  YouTube LLC,
  901 Cherry Ave San Bruno
  CA 94066
  USA

Wenn Sie eine unserer mit einem *YouTube Plugin* ausgestatteten Seiten
besuchen, wird eine Verbindung zu den Servern von YouTube hergestellt. Dabei
wird dem Youtube-Server mitgeteilt, welche unserer Seiten Sie besucht haben.

Wenn Sie in Ihrem YouTube-Account eingeloggt sind ermöglichen Sie YouTube,
Ihr Surfverhalten direkt Ihrem persönlichen Profil zuzuordnen. Dies können
Sie verhindern, indem Sie sich aus Ihrem YouTube Account ausloggen.

Weitere Informationen zum Umgang von Nutzerdaten finden Sie in der
https://www.google.de/intl/de/policies/privacy[Datenschutzerklärung von YouTube, window="_blank"].
endif::[]