Karen leads the Security Science Cluster and coordinate the Human-Centred Security Research Group. She is interested in the interplay between users and security in the context of societal and industrial use. Karen wants to work towards creating a natural easy yet secure interaction between humans and devices. Her work has a strong development, experimental and deployment focus, testing solutions in practical situations. She has come up with a number of novel solutions to improve usability in a wide range of situations. Karen has also done fundamental work in understanding people’s mental models of security in a variety of applications and contexts.