Device Trust Signal Flow

Device and behavioral signals, consent, device matching, risk scoring, and the trust decision

Device Trust Signal Flow Device and behavioral signals, consent, device matching, risk scoring, and the trust decision 01 / Sources 02 / Consent 03 / Identity 04 / Score 05 / Decision Device Signals · HW / OS / browser · 01 / Sources · attributes Device Signals HW / OS / browser attributes Behavioral Signals · typing / touch · 01 / Sources · cadence Behavioral Signals typing / touch cadence Consent Gate · opt-in filter · 02 / Consent · PII guard Consent Gate opt-in filter PII guard Fingerprint · stable device ID · 03 / Identity · hash Fingerprint stable device ID hash Device Store · known profiles · 03 / Identity · match Device Store known profiles match Risk Scoring · anomaly model · 04 / Score · 0-100 Risk Scoring anomaly model 0-100 Trust Decision · allow / step-up / block · 05 / Decision · policy Trust Decision allow / step-up / block policy device attrs raw signal behavior signals raw signal gated signals consent ok live behavior consent ok lookup device id match score returning? risk score 0-100 Legend primary data policy / PII async batch data store

Primary Trust Path

  • • Signals flow left to right through source, consent, identity, score, and decision stages
  • • A stable fingerprint feeds a device-store lookup that answers returning-or-new
  • • Match confidence and live behavior converge into a single risk score

Consent Boundary

  • • Both signal families pass one opt-in gate before any storage or scoring
  • • Consent-gated edges are styled as security flows
  • • Passive collection stays transparent and minimized by default

Decision Outcomes

  • • One risk score drives allow, step-up, or block
  • • Low risk stays frictionless; ambiguous risk triggers step-up auth
  • • High risk blocks or routes to a fraud review queue

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