Gunshot technology ShotSpotter is being used to deter rhino poaching in Kruger National Park, helping authorities reduce unsanctioned killings by 60% inside the park’s Intensified Protection Zone (IPZ). South Africa, which holds nearly 80% of the world's rhinos, has been the country hit hardest by poaching criminals, with more than 1 000 rhinos killed each year between 2013 and 2017. Kruger is a critical poaching area.