China’s Great Firewall suffers its biggest leak ever as 500GB of source code and docs spill online –

Luke James reports: Chinese censorship sprang a major leak on September 11, when researchers confirmed that more than 500GB of internal documents, source code, work logs, and internal communications from the so-called Great Firewall were dumped online, including packaging repos and operational runbooks used to build and maintain China’s national traffic filtering system. The files appear to…[Source](https://databreaches.net/2025/09/13/chinas-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/?pk_campaign=feed&pk_kwd=chinas-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)![](https://analytics.hitsaru.com/piwik.php?idsite=11&rec=1&url=https%3A%2F%2Fdatabreaches.net%2F2025%2F09%2F13%2Fchinas-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%2F%3Fpk_campaign%3Dfeed%26pk_kwd%3Dchinas-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&action_name=China%E2%80%99s+Great+Firewall+suffers+its+biggest+leak+ever+as+500GB+of+source+code+and+docs+spill+online+%E2%80%94+censorship+tool+has+been+sold+to+three+different+countries&urlref=https%3A%2F%2Fdatabreaches.net%2Ffeed%2F)

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