People visit the 2016 Beijing Cyber Security Expo in Beijing, capital of China, April 28, 2016. Experts of computer science and cyber security companies took part in the three-day expo which kicked off Thursday. (Photo: Xinhua/Wang Yiliang)
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People visit the 2016 Beijing Cyber Security Expo in Beijing, capital of China, April 28, 2016. Experts of computer science and cyber security companies took part in the three-day expo which kicked off Thursday. (Photo: Xinhua/Wang Yiliang)
