Shipping liveness in four hours changed everything

Earlier this week, an investor paused mid-call and said, “You’re processing biometrics in the browser with sub-50ms latency. But what stops someone from holding up a photo?” I didn’t have a real-time answer. I had assumptions—about spoofing being low-effort, about enterprise buyers layering in their own liveness—but not a technical one. The call ended. I opened a new tab, pulled the last 18 sessions from our internal logs, and started writing. Most people think spoof detection requires machine l