Best of 2025: NOT-So-Great Firewall: China Blocks the Web for 74 Min.
ID: 1c4ee6c3-53e8-5dc8-8821-ef4361e55589
STIX ID: report--1c4ee6c3-53e8-5dc8-8821-ef4361e55589
Feed Name: Security Boulevard
Threat Score
A blogwatch article recounts an August 20 incident in which China’s Great Firewall allegedly injected forged TCP RST+ACK packets on TCP port 443 for about 74 minutes, disrupting HTTPS connections to and from China; investigators observed asymmetric triggering behavior and concluded the responsible device did not match known GFW fingerprints, leaving open possibilities of a new device, misconfiguration, deliberate test, or external interference.
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