Abstract: Connected and autonomous/automated vehicles (CAVs) will play a significant role in a future transport system and unlock enormous social benefits at the same time. The FLOURISH project was a multi-partner venture funded by InnovateUK from June ’16 – May ’19 (grant ref. 102582, £3.7M) aiming to enable the delivery of many of these benefits by helping to ensure that CAVs are developed with the user in mind and are technically secure, trustworthy and private. Two and a half years on, we reflect in this talk on some key contributions in this space, particularly about secure design, security infrastructure deployment challenges and the understanding of user perceptions of risk related to CAV use.