Once successful products dominate the market it often does not take long before the first imitation is offered on the internet. In that respect, entrepreneurs are not as defenseless as they often think. Dr. Nicolás Schmitz, intellectual property attorney at the law firm of Grünecker (Munich office), knows that sales platforms such as Amazon and eBay have their own complaints channel. The latter usually work very well. In the case of persistent counterfeiters, whose imitations come up again and again, companies should, however, have a cease and desist undertaking and warning letter issued.