We use “Google reCAPTCHA” (hereinafter “reCAPTCHA”) on this website. The provider is Google Ireland Limited (“Google”), Gordon House, Barrow Street, Dublin 4, Ireland. The purpose of reCAPTCHA is to check whether the data input on this website (e.g. in a contact form) is made by a human being or by an automated programme. For this purpose, reCAPTCHA analyses the behaviour of the website visitor on the basis of various characteristics. This analysis begins automatically as soon as the website visitor enters the website. For the analysis, reCAPTCHA evaluates various information (e.g. IP address, time spent by the website visitor on the website or mouse movements made by the user). The data collected during the analysis is forwarded to Google. The reCAPTCHA analyses run entirely in the background. Website visitors are not informed that an analysis is taking place.