Earth Wendigo is a threat actor from China that has been targeting several organizations — including government organizations, research institutions, and universities in Taiwan — since May 2019, aiming to exfiltrate emails from targeted organizations via the injection of JavaScript backdoors to a webmail system that is widely used in Taiwan. The threat actor also sent spear-phishing emails embedded with malicious links to multiple individuals, including politicians and activists, who support movements in Tibet, the Uyghur region, or Hong Kong.