The use of personal data on our pages (such as name, address or e-mail address) is on a voluntary basis. The use of tenders and services is largely possible without giving personal data. Users should be aware that the use of data transmission on the Internet - for example, e-mail communication, can reveal security gaps. Complete data protection against access by third parties is not possible. There is no permanent storage, analysis or dissemination of data to third parties. Furthermore, we expressly oppose the collection of contact data shown during log-in and do not engage in selling or trading personal information to others such as marketing companies. As the site operator we shall take strong legal action in the event of unsolicited promotional information (for example, by spam e-mails).