To this day, I've never used WhatsApp on my phone. On the topic of security and privacy, WhatsApp has a long and checkered history, worthy of a special page on Wikipedia. For instance, earlier this year the company found themselves in the news again when they gave their users an ultimatum: hand over your data to Facebook or stop using WhatsApp. That's the kind of demand that sends people running. Nevertheless, people around the world continue to use WhatsApp.