ISO 27018
Cloud Privacy Controls
PCI 3DS vs PCI DSS – Key Differences
3-D Secure Protocol
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Scoping PCI 3DS vs Cardholder Data Environments
Understanding the boundaries: data processed for authentication isn’t the same as cardholder systems governed by PCI DSS.
Authentication Data Only
Covers transaction data—not full cardholder environment or storage scope.
Separate Compliance Tracks
3DS and PCI DSS require distinct control and audit approaches.
Different Risk Models
Threats differ; 3DS focuses more on identity validation vectors.
Covered Entity Types
PCI 3DS applies across distinct entities—each with security responsibilities tied to authentication, validation, and data protection.
Assessment & Controls
PCI 3DS assessments demand targeted, context-aware control testing tailored to authentication roles and responsibilities.
Tailored Evidence
Each control requires evidence aligned with specific entity roles and data flows.
Entity Context
Control applicability shifts based on system type and 3DS function provided.
Control Clarity
Controls include explicit objectives—no guesswork, just precision in implementation.
Authentication Flow
Tests focus on security across full challenge, frictionless, and fallback flows.
System Boundaries
Control scope depends on technology stack and exposure to sensitive data.
QSA Judgement
Assessors must interpret intent, not just checklist—context is everything.
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