Detection quality depends on event semantics, schema evolution, idempotency, and honest health signals before it depends on clever rules. ...more

Every endpoint sensor has structural blind spots. The important skill is identifying, testing, and documenting them. ...more

Network isolation is a distributed-systems problem: preserve control, apply policy atomically, and design a safe path back. ...more

Adding response turns an endpoint sensor into a remote authority. This is how commands can be authenticated, scoped, and revoked. ...more

Why PIDs and paths are not identities, and how an EDR can name processes and files safely across time. ...more

Why endpoint telemetry pipelines converge on bounded queues, durable logs, replay, and idempotent consumers. ...more

Windows, Linux, and macOS expose endpoint telemetry through three different trust models—and make sensor failures surface at different times. ...more

Build a small EDR-style process monitor in C using ETW, the Microsoft Windows Kernel Process provider, and TDH payload parsing. ...more