This Chen Yusen, who took over as DingTalk CEO from Wu Zhao, is also a big shot in our Bitcoin mining circle. After graduating from Zhejiang University, he founded Chaitin Tech to work on cybersecurity, and now most banks and brokerages use his products. Chaitin was acquired by Alibaba in 2019, after which Chen Yusen joined the Bitcoin mining company SAITECH. In 2024, he shifted to AI, created an Agent Market called MuleRun, and rejoined Alibaba. But he’s got some 'dark history' too—he made it onto the 30under30 list