Dave Lewis delivered the talk “The Se7en Deadly Sins of Web Security” during the Codemotion Berlin 2018 conference. We interviewed David, asking these questions: Is it possible to create a strong, secure site, with a user-friendly experience? Occasionally we hear about bot attacks and hacks towards strong and secure companies, what does this mean for the future? Should users be worried about these or is it not as bad as it looks? Is the security industry ready for these attacks? Are there new developments in the fight against them? What is, in your experience, the weakest link between the final users, the developers and the product owners? What is the difference between web security and online privacy and how do they interact and interfere between each other?