Motion Challenge
Can your phone's gyroscope tell the difference between a human responding to a random challenge and a replay attack?
Research Prototype · EE-003 · Not for production
How this works
3 randomized rounds. Each round shows a direction — rotate your phone that way when the timer hits zero.
← → = yaw (twist wrist left/right) | ↑ ↓ = pitch (tilt phone toward/away)
Timing is jittered (±1000ms) to prevent replay attacks. Need 2/3 rounds for sufficient evidence.
Research Prototype · The Continuity Lab
Parameters intentionally omitted · Developer mode