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Train passengers may be riding into the Chinese New Year with concerns about data loss after thieves listed millions of train passengers’ information for sale on the black market.

China’s official rail authority, China Railway, blamed a recent hacking on third-party ticketing vendors, often thought to be more convenient, though perhaps less secure, than the official railway ticketing platform, 12306.cn. Earlier this week, it was reported that China Railway moved to limit third-party apps’ access to train tickets.

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Cassidy McDonald

Cassidy McDonald is a Beijing-based multimedia journalist who covers technology's effect on Chinese society. She tweets at @CMcD123.

Nicole Jao

Nicole Jao is a reporter based in Beijing. She’s passionate about emerging trends, news, and stories of human interest within the world of technology. Connect with her on Twitter or via email: nicole.jao.iting@gmail.com.