A Tale of Two Leaks: How Hackers Breached the Great Firewall of China

Jade Sheffey

39th Chaos Communication Congress (39C3): Power Cycles · Day 1 · Saal Zero

In this compelling talk at 39C3, Jade Sheffey, a PhD student at the University of Massachusetts Amherst, unveiled two significant breaches into the operational mechanisms of China's formidable **Great Firewall (GFW)**. The presentation, titled "A Tale of Two Leaks," detailed how researchers uncovered critical vulnerabilities that not only allowed for the exfiltration of sensitive user data but also provided an unprecedented glimpse into the GFW's internal architecture and patching processes. This work stands as a testament to the ongoing efforts to understand, measure, and circumvent internet censorship, highlighting the inherent insecurity even in state-sponsored blocking systems.

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