In this episode, Tien-Chi Lu and Alexander Wagner set out to investigate the concept of security of messenger apps. Living in modern and hyper-connected societies, we are confronted on a daily basis by questions such as: what does “secure” mean? And from whom? Is there such a thing as an entirely private or secure messenger app? How does the new WhatsApp update affect users worldwide? Can we trust the messenger apps’ claims to be secure? Our guest expert from the Weizenbaum Institute for the Networked Society, Yan Foto, helps us understand in simple terms what it all means.