LetsVPN, once boasting 20 million users and the slogan 'always connectable,' announced on April 28 that it had lost its technological battle and was exiting the Chinese mainland market, initiating refunds. The move stems from China's most aggressive internet clampdown since April, where authorities not only cut off infrastructure-level cross-border traffic but also deployed an AI system called 'Sky Dog' to precisely block proxy traffic, and legally reclassified VPN usage as a 'tool for subverting state power.' Tens of thousands who rely on VPN access for overseas information—including cross-border e-commerce operators, AI developers, and Web3 enthusiasts—now face severe connectivity disruption.
20-Day Fight Yields Surrender
In a statement, LetsVPN called its decision 'painful.' The team revealed that since mid-April, service outages had escalated rapidly. Engineers worked 'almost every hour' for 20 days to adjust and repair, but finally conceded they could no longer overcome what they described as 'state-level technical blockade.' The brand's famous promise of 'always connectable' lay shattered.
Infrastructure Cut + AI Identification: The Harshest Crackdown
LetsVPN's collapse is only one piece of a nationwide internet containment campaign. According to multiple sources, since March 2026, a joint operation led by the Central Cyberspace Affairs Commission and the Ministry of Industry and Information Technology, in full cooperation with the three major telecom carriers, has escalated to unprecedented levels:
- Direct infrastructure disconnection: Authorities ordered data centers and IDC providers to self-inspect and block all cross-border traffic, including to Hong Kong, Macau, and Taiwan. Suspicious IPs trigger immediate physical port shutoffs or even server shutdowns. The old gray-area practice of renting official data center relay capacity has been eradicated.
- AI 'Sky Dog' precision targeting: Previous firewalls relied on protocol signature recognition, but now each province has deployed independent monitoring systems (such as 'Sky Dog') using AI and behavioral analysis. Traditional obfuscation techniques are now completely ineffective.
- Legal and political escalation: The revised Cybersecurity Law (effective 2026) explicitly treats VPN tools as 'instruments for subverting state power,' aiming to block cognitive infiltration. Individuals caught circumventing the firewall now face higher fines and mandatory political talks.
Digital Iron Curtain Falls: Cross-Border Industries in Limbo?
The impact has spread far beyond political dissidents, hitting China's massive cross-border e-commerce, foreign trade, academic research, AI developers dependent on GitHub, and Web3 workers reliant on overseas exchanges. The industry consensus is that '100% reliable VPN tools' no longer exist. Enterprises with legitimate cross-border needs are forced to apply for state-monitored official channels; individual users, aside from seeking refunds from dead VPNs, can only turn to more expensive and riskier eSIM international cards or rotate through multiple mainstream VPNs. The decoupling of China's internet from the global network has entered a stifling new phase.