The use of the website is usually possible without providing personal information. If the opportunity for the input of personal data (like name, address or email addresses) are requested, this is preferably on a voluntary basis. These data will be not given to third parties without your approval.
I would like to point out that data transmission over the Internet (like when communicating via email) can have security gaps. A complete protection of data against unauthorized access by third parties is impossible.
The use of published under the imprint obligation by third parties for sending unsolicited advertisements and information materials is hereby expressly prohibited. The operators of these pages expressly legal steps in case of unsolicited promotional information, such as spam e-mails.