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MCP is now traffic a firewall can name

MCP traffic detection now matches protocol headers, not mcp in the hostname. Treat the next remote MCP install as a named network event, not a config tweak.

Deep DivesMCPCloudflareSecurityDeveloper ToolsArchitectureNetworkingAI Coding1 min read · Aug 22, 2026

Isolate sharing is a Spectre channel on Workers

Workers Spectre is isolate sharing on the edge. A JWT in neighbor heap leaked at 12 bit/s in production. Keep secrets on env rather than module scope.

Deep DivesCloudflareSecurityServerlessEdge ComputingArchitectureDeveloper Tools1 min read · Aug 21, 2026