The top ten risks in terms of likelihood include extreme weather events, natural disasters, cyber attacks, data fraud or theft, climate change, involuntary migration, man-made environmental disasters, terrorist attacks, illicit trade and asset bubbles in major economies. The biggest risks in terms of impact would be weapons of mass destruction, extreme weather events, natural disasters, climate change, water crises, cyber attacks, food crises, biodiversity loss and ecosystem collapse, involuntary migration and spread of infectious diseases