The Traditional Chinese Translation of InterSecLab's The Internet Coup

For years, outsiders could judge what China's Great Firewall (GFW) can do mostly from network measurements. Around 500GB of leaked data made public in mid-September 2025 covers the Great Firewall's technology and how the system is exported to and deployed in other authoritarian states.

InterSecLab, a digital security lab, learned of the data around December 2024. Over the following ten months it worked with several organisations and technical communities to verify and analyse it, and published its report on 12 September 2025.

We, the anoni.net community, were not involved in the early verification work. Reading the report after publication, we found it confirmed many long-held suspicions about the Great Firewall's capabilities. From the report we can also see the teams and organisations behind it. Their development environment resembles that of an ordinary startup, systems exported to other countries can be operated and maintained remotely, and the Chinese government and other state customers can switch on custom or general rule sets with a single click.

Chapters of the Translation

The details of the leaked data and of how the Great Firewall is operated are in our Traditional Chinese translation, and the English original is InterSecLab's The Internet Coup. The translation follows the INDEX sections of the original in eight chapters, so readers can cross-reference the source as they go.

Acknowledgements

Thanks to InterSecLab's research team for accepting our offer to translate the report and for their encouragement afterwards. Reading it gave us a clearer picture of the risks China poses.

Discussion and Ways to Take Part

We opened a Matrix discussion channel for the report, and anyone with thoughts after reading it is welcome to join.

InterSecLab also planned to keep studying the source code in the leaked data, and anyone interested in taking part in the code review can contact InterSecLab directly.