Cape Town, Johannesburg, and Pretoria are among the most dangerous cities in the world. This is according to the latest Cities@Risk Security Index by risk consultancy Verisk Maplecroft.  The index ranks over 570 urban centers and their exposure to threats. This allows companies with global operations to gauge what their commercial experience will be in another country. Overall, South African cities performed the worst, receiving the lowest possible scores. Outside the America’s, according to the group, companies operating in South Africa face the most serious crime risks.