To date, the main legacy of the Brexit referendum of 2016 appears to be a country split in half: some badly wish the UK would continue to be a member of the EU and some are equally keen on making a move. Yet, there seems to be at least one thing on which Remainers and Leavers will agree: nobody knows exactly what is going to happen. The same is true of the effect of Brexit on UK data protection. However, as Brexit day approaches, it is becoming imperative for those with responsibility for data protection compliance to make some crucial strategic decisions. To help with that process, here are some pointers about what we know and what we don’t know.