Why Tehran’s Two-Tiered Internet Is So Dangerous

Iran is slowly emerging from the most severe communications blackout in its history and one of the longest in the world. Triggered as part of January’s government crackdown against citizen protests nationwide, ...
A Chinese flag flies on a high pole

Best of 2025: NOT-So-Great Firewall: China Blocks the Web for 74 Min.

HTTPS connections on port 443 received forged  replies. Chinese web users couldn’t access websites outside the People’s Republic yesterday. The outage lasted an hour and a quarter—with no explanation. Nobody’s sure whether it ...
Security Boulevard

Chinese Surveillance and AI

New report: “The Party’s AI: How China’s New AI Systems are Reshaping Human Rights.” From a summary article: China is already the world’s largest exporter of AI powered surveillance technology; new surveillance ...

Details About Chinese Surveillance and Propaganda Companies

Details from leaked documents: While people often look at China’s Great Firewall as a single, all-powerful government system unique to China, the actual process of developing and maintaining it works the same ...

Banning TikTok

Congress is currently debating bills that would ban TikTok in the United States. We are here as technologists to tell you that this is a terrible idea and the side effects would ...

Differences in App Security/Privacy Based on Country

Depending on where you are when you download your Android apps, it might collect more or less data about you. The apps we downloaded from Google Play also showed differences based on ...
Under the Wire: Evading Censorship & Protecting Sensitive Information

Under the Wire: Evading Censorship & Protecting Sensitive Information

Troubled Times In times of trouble, citizens can feel a sense of deep helplessness. With war, famine, or political unrest raging outside of their window, many feel compelled to help or somehow ...

Illegal Content and the Blockchain

Security researchers have recently discovered a botnet with a novel defense against takedowns. Normally, authorities can disable a botnet by taking over its command-and-control server. With nowhere to go for instructions, the ...