China’s Great Firewall Mysteriously Severed Connection to the World for an Hour
The Great Firewall's targeted block on port 443 disrupted encrypted international web traffic for 74 minutes, affecting global companies and highlighting internet fragility, analysts said.
19 Articles
19 Articles
Internet Outage Before Major Parade Suggests China Upgraded Firewall to Tighten Controls
China briefly blocked nearly all encrypted internet traffic in the early hours of Aug. 20, in what cybersecurity researchers and engineers believe was a large-scale test of an upgraded version of the country’s internet censorship system, known as the Great Firewall. From 12:34 a.m. to 1:48 a.m. Beijing time on Aug. 20, China’s internet filtering system injected forged reset signals into all connections using TCP port 443—the standard port for HT…
“Marele Firewall Chinazesc”, the wide system of centralization of Beijing’s internet, seems to have been recorded a problem that has led to the disconnection of the country from most of the global internet on Wednesday, reports The Register....
On 20 August 2025, the Chinese "Great Firewall" blocked all encrypted traffic (HTTPS) for 74 minutes, isolating the country from a large part of the global web. The source of this large-scale interruption, whether it is an intentional trial or a technical failure, remains unknown and underlines the vulnerability of the global internet connection.
In China it is used to the fact that many foreign web sites are not accessible, but it has become even worse: for more than an hour almost all connections across national borders were no longer possible. (Read more)
Coverage Details
Bias Distribution
- 50% of the sources lean Left
Factuality
To view factuality data please Upgrade to Premium