Researchers reconstructed and ran Tiangou Secure Gateway (TSG) in a lab using leaked Geedge Networks source code, revealing how the commercial censorship platform detects and blocks VPNs, Tor, Signal, and other circumvention tools. Their analysis also found strong technical evidence linking TSG to Great Firewall of China components, with deployments tied to Myanmar, Pakistan, and Ethiopia. #TiangouSecureGateway #GeedgeNetworks #GreatFirewallofChina #ExpressVPN #NordVPN #Psiphon #Tor #Signal
Keypoints
- Researchers rebuilt Tiangou Secure Gateway from leaked source code.
- TSG can detect, throttle, reset, and redirect traffic to block circumvention tools.
- The leak exposed more than 100,000 internal Geedge Networks files.
- Internal records link TSG to deployments in Myanmar, Pakistan, and Ethiopia.
- DNS behavior and TCP reset logic suggest a close link to the Great Firewall of China.
Read More: https://securityonline.info/tiangou-secure-gateway-great-firewall-leak/