The humans behind
the build and the hunt.
Kestrel started with a simple frustration: the team that builds your software and the team that defends it almost never talk. So attackers live in the gap between them. We closed the gap by putting both under one roof.
Tools don't stop breaches. People do.
Every business is now a software business, which means every business is now a target. The market answered with more dashboards and more alerts, and teams drowned in both.
We took the opposite bet. Automation handles the volume, but a human makes the call. The engineers who understand how your system is built are the ones deciding whether an anomaly is noise or an intruder. That context is the whole point.
A kestrel hunts by hovering perfectly still, then striking the instant something moves. That's how we work for the people who trust us: patient, watchful, and fast when it counts.
The principles we won't trade away
Humans in the loop
Tooling scales, but people catch what automation misses. Every alert that matters reaches an analyst.
Secure by default
Security isn't a phase you bolt on at the end. It's baked into how we design, build, and run things from day one.
Speed without recklessness
We ship fast because the guardrails are real, not because we skipped them.
One accountable team
Builders and defenders share a room and a mandate. No finger-pointing across a vendor boundary.
Six disciplines, one mandate
No hand-offs across a vendor boundary. Builders and defenders sit together and share accountability for the outcome.
Ship the software your customers touch.
Keep it fast, cheap, and hard to knock over.
Watch the feeds. Chase the anomalies. Never off.
Assume a breach and go find it.
On the line when the worst happens.
Break what we build before an adversary does.
Bring us the problem you've been putting off.
Whether it's a product that needs building or a system that needs watching, we'd like to hear about it.