It's Wu Hanqing.

Alibaba's chief security expert, Wu Hanqing, was born in 1985. At the age of 15, he entered the famous 985 Xi'an Jiaotong University's junior class; graduated at the age of 21. In front of Alibaba's interviewer, he hacked into Alibaba's intranet system in just 3 minutes, shocking the examiner. From then on, Wu Hanqing began his life of cheating in Alibaba. In the huge disaster in the history of the Internet a few years ago, Wu Hanqing led his team to successfully resist hacker attacks, allowing Alibaba to escape. As Alibaba's chief security expert, Wu Hanqing helps 40% of China's websites resist nearly 2 billion hacker attacks every day.