By registering, users decide whether to share their tweets publicly or for a defined area including personal data. This is simply structurally due to the fact that data is processed in the USA, among other places, where the GDPR is not relevant for Twitter. Twitter and data protection are therefore to be seen across borders. In response to tightening laws in Europe, Twitter redesigned data protection in 2017 with new guidelines. The short message service itself speaks of more transparency and configuration options for users in the area of privacy. There, users can configure data protection on Twitter.