Russia Built a National Firewall — And We Mapped Every Hole In It How researchers scanned 46 million IP addresses and found the architecture of modern internet censorship At Gerus-lab, we build systems that need to work globally. Whether it's a Web3 protocol running across jurisdictions or a SaaS platform serving users in 20+ countries, we think deeply about network architecture and infrastructure resilience. So when a fascinating technical research paper dropped on the Russian developer community this week — mapping the complete architecture of Russia's internet whitelist system — we couldn't stop reading. This is a technical deep-dive. And honestly, it's one of the most detailed analyses of stateful internet censorship we've seen published publicly. From Blacklists to Whitelists: The Architecture Shift Nobody Talks About Most people understand internet censorship as a blacklist: "block X, Y, Z, allow everything else." Russia's system has evolved far beyond this.…