Dakota Cary

A Walking Red Flag (With Yellow Stars)

APT40 used CTFs at Hainan University to recruit hackers and source software vulnerabilities for operations. Jiangsu MSS received vulnerabilities from the Tianfu Cup. iSoon hosted their own CTF before their files were leaked on Github. Chinese intelligence cutouts tried to pitch US participants at RealWorldCTF. The list goes on.

A diverse ecosystem of CTFs exists in China and it has, until now, been largely ignored. Since 2017 when the PRC government issued rules to bolster cybersecurity competitions, incorporate them into talent cultivation and training programs, and limit the amount of money to be paid out in rewards, China’s security ecosystem has launched more than 150 unique competitions. Including competitions that are held annually, the number of events since 2017 exceeds 400.

Not all these competitions are software vulnerability competitions like Tianfu Cup—in fact, few are. Most are aimed at talent cultivation and recruiting, and many are hosted by the military, the intelligence services, or other arms of the state.

This talk will leave attendees with an understanding of the diversity of China’s CTF ecosystem, its major leagues and events, and the annual number of participants across society. It will highlight some competitions held expressly by the Ministry of State Security and the PLA—delving into the competitions’ particulars. Defenders with appropriate CTI collection capabilities will better understand how to target their collection efforts on specific individuals in China.


Dakota Cary is a strategic advisory consultant at SentinelOne. His reports examine artificial intelligence and cybersecurity research at Chinese universities, the People’s Liberation Army’s efforts to automate software vulnerability discovery, and new policies to improve China’s cybersecurity-talent pipeline. Prior to SentinelOne, he was a research analyst at Georgetown University’s Center for Security and Emerging Technology on the CyberAI Project. He focuses on China’s efforts to develop its hacking capabilities. Cary has also testified before the US-China Economic and Security Review Commission.

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