In principle, you can access our site without providing any personal information. Your personal data is only required if you have contact with ABH. All e-mails sent to or from ABH are thus automatically stored in a file system that preserves their probative value. They shall be protected by technical and organizational measures and shall only be accessed by specific persons holding specific positions in justified cases in accordance with applicable laws and regulations. Each step in the process and the search criteria used are recorded in an audit trail. All e-mails are deleted after the applicable retention period.