The global escalation of Internet censorship by nation-state actors has led to an ongoing
arms race between censors and obfuscated circumvention proxies. Research over the past …

Advances in networking and firewall technology have led to the emergence of network
censorship devices that can perform large-scale, highly-performant content blocking. While …

Russia's invasion of Ukraine in February 2022 was followed by sanctions and restrictions: by
Russia against its citizens, by Russia against the world, and by foreign actors against …

The ecosystem of censorship circumvention tools (CTs) remains one of the most opaque
and least understood, overshadowed by the precarious legal status around their usage and …

In-network devices around the world monitor and tamper with connections for many reasons,
including intrusion prevention, combating spam or phishing, and country-level censorship …

DNS root servers are the starting point of most DNS queries. To ensure their security and
stability, multiple anycast instances are operated worldwide, and new root instances have …

Nation-states impose various levels of censorship on their Internet communications. As
access to Internet resources has grown among the global population, some governments …

We present one of the first in-depth and systematic end-user centered investigations into the
effects of sanctions on geoblocking, specifically in the case of Cuba. We conduct network …

During periods of strict internet censorship, maintaining access to online information and
communication becomes paramount. However, users often have to navigate complicated …

We present a global, large-scale measurement of Internet traffic shadowing, a less-studied
yet covert format of on-path manipulation. As part of pervasive monitoring, data within …