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China’s Great Firewall suffers its biggest leak ever as 500GB of source code and docs spill online — censorship tool has been sold to three different countries


Leaks tie China’s state-grade DPI gear to deployments in Myanmar, Pakistan, and beyond.

The files appear to originate from Geedge Networks, a company that has long been linked to Fang Binxing — widely described as the “father” of the Great Firewall — and from the MESA lab at the Institute of Information Engineering, a research arm of the Chinese Academy of Sciences. You may like Researchers at the Great Firewall Report, who first verified and indexed the material, say the documents outline the internal architecture of a commercial platform called ‘Tiangou’, which is designed for use by ISPs and border gateways. Partner reporting from WIRED and Amnesty International reveals that Geedge’s DPI infrastructure has been exported to other states — Pakistan, Ethiopia, and Kazakhstan being among the recipients — where it’s often used alongside lawful intercept platforms.

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