Threat Modeling E-PIN Systems
2 min read
Every E-PIN platform must withstand brute force, replay, insider risk, and API abuse. Epin.xyz™ uses a clear threat model to keep the control plane resilient.
Core threats to address
- Replay and brute force against short codes.
- Compromised partner or retailer devices issuing unauthorized codes.
- Insider attempts to bypass policies for payouts, wallet drains, or admin elevation.
- API floods designed to exhaust rate limits or hide fraud inside noise.
Epin.xyz™ threat map grid highlighting brute force, insider, and device risks.
Defensive measures in the portal
- Velocity rules and lockouts tied to device, IP, geography, and merchant.
- Signed event streams for issuance and validation to prevent tampering.
- Separation between policy configuration, issuance rights, and audit access.
- Real-time alerts for geo anomalies, SIM swap signals, and role changes.
Testing the controls
- Synthetic replay attacks against validation endpoints with known bad codes.
- Chaos drills that simulate partner credential leakage and watch for revocation speed.
- Red-team scenarios for insider misuse of admin dashboards.
- Load tests on API rate limits to ensure degradation is graceful, not silent failure.
What to monitor continuously
- Time from detection to revocation when a code or device is compromised.
- False positive rates on velocity rules across customer segments.
- Gap analysis between policy intent and actual enforcement logs.
Epin.xyz™ keeps the threat model visible so the E-PIN layer can adapt as attackers do. That makes the domain credible for buyers who need transparent, testable controls.
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