The word ‘’smart’’ is trending nowadays: next to smart city, topics that are often mentioned are smart industry, smart government and smart society. Security is key to all smart developments. Data leakage from online databases as part of smart city services, for example, could have serious consequences. However, Smart Secure Cities are not only about IT in combination with cyber security and online safety, but also about how security can be organised in a smart way. The development of a shared vision on smart city security, for example, allows involved parties to develop secure products and services from the outset, also known as ‘security by design’. On top of this, it opens up opportunities for a chain approach to integrated security.