Investment fraud on the Internet does not respect national borders. Investment fraudsters from all over the world take advantage of this by using false identities and websites and addresses that are difficult to trace to target their supposedly lucrative offers at their unsuspecting victims. It is not only important to keep an eye on BaFin for investment fraud in Germany, FMA for investment fraud in Austria and Finma for investment fraud in Switzerland as the responsible supervisory authorities and the warning lists. Because of the cross-border cases of investment fraud, it is also important to publish the competent financial and banking supervisory authorities of the most important European countries, so that potential investors can inform themselves in good time about the risks or, if necessary, consult a lawyer familiar with investment fraud.