Lead a cross-team fraud incident response
Overview
This question evaluates leadership in incident response, cross-functional coordination, fraud detection and mitigation, quantitative risk assessment, regulatory reporting, and ownership of post-incident remediation for a Data Scientist role, and it falls under Behavioral & Leadership within fraud risk management and operational analytics.
Describe a specific time you led a high-severity ACH fraud incident from detection to resolution. Include: (1) the first on-call signal you saw, (2) the concrete business impact you quantified (fraud rate, $ loss, affected users), (3) the decision you made within the first 24 hours and why, (4) how you aligned Risk, Compliance, Legal, Eng, and Support when they had conflicting incentives, (5) the control(s) you implemented and the rollout plan (kill switch, ramp, rollback criteria), (6) how you balanced false positives vs. loss (target metrics and thresholds), (7) what you reported to executives and regulators, and (8) the postmortem actions you owned. Be precise with dates, numbers, and trade-offs; explain one decision you would change in hindsight and why.