Marius Musch .ical Intervention 29/12 18:10 40minutes Web-based Cryptojacking in the Wild Marius Musch A cryptojacking website abuses the computing resources of its visitors to covertly mine for cryptocurrencies in the browser. In this talk, we explore this phenomenon and answer, amongst others, the following questions: How does the mining script work under the hood? How common is this attack? How much money do the attackers earn? And how can I defend myself against such attacks? Security Clarke