Production designs
Design bot detection
Reason about adversarial adaptation.
Understand the problem
Combine behavioral, network, and account signals while respecting privacy constraints. Score activity at multiple time scales. Use graduated actions and monitor legitimate-user impact.
Make it concrete
A suspicious account may receive a challenge before a permanent restriction is considered.
Trade-offs and pitfalls
Attackers adapt to visible thresholds, so static rules alone deteriorate.
Check your understanding
Evaluate performance when labels arrive days after the event.
Practice this topic