As cyberspace and space emerge as new domains of warfare, the need to safeguard spacecraft and land-based infrastructure has never been more important.  Where and how we encounter hostile actions has changed, and the line between civilian and defence spheres is blurring. The inherent dual-use nature of almost all technology means that innovation that benefits defence will come from technology advances in academic and commercial sectors, as well from civil R&D programme. Commercial companies are playing a pivotal role in this new space race.  Join this fireside chat to understand the rapidly evolving landscape, the threats and the opportunities.