In 2019, a watering-hole attack, called Holy Water Campaign, targeted Asian religious and charity groups.[17] Victims were prompted to update Adobe Flash which triggered the attack. It was creative and distinct due to its fast evolution.[18] Motive remains unclear.[18] Experts provided a detailed technical analysis along with a long list of Indicators of Compromise (IoCs) involved in the campaign, but none could be traced back to an Advanced Persistent Threat.[19]