PCI 3DS Compliance & Assessment Services
Secure authentication flows within the 3D Secure framework to protect card-not-present transactions and prevent fraud in digital payments. Implement strong authentication across the cardholder, merchant, and issuer domains, organizations to strengthen transaction security and meet PCI compliance requirements.
Why it matters
E-Commerce Security & Authentication Challenges
Rising CNP Fraud Risks:
Online card-not-present transactions remain highly vulnerable to fraud, requiring stronger authentication controls.
Managing Complex Authentication Flows:
3DS introduces additional verification layers that must operate seamlessly within the payment journey while maintaining strong customer authentication.
Three-Domain Security Complexity:
Securing authentication across the cardholder, merchant, and issuer domains introduces architectural and operational challenges.
Sensitive 3DS authentication data:
3DS authentication flows involve the transmission of sensitive data that must be securely handled and protected.
Defining Scope and Roles Across the Ecosystem:
Organizations must clearly identify which systems, components, and stakeholders fall within the PCI 3DS scope across the authentication infrastructure.
Our Approach
The SISA Five-Step Framework for PCI 3DS Compliance
We establish clear boundaries and roles within the 3DS environment.
We assess your data flow and architecture to ensure the secure handling of authentication data.
We evaluate your environment against the PCI 3DS Core Security Standard.
We deliver targeted guidance to align your environment with industry best practices.
We provide audit-ready support for defensible compliance outcomes
Service Offerings
Our PCI 3DS Assessment & Compliance Services
Assess PCI 3DS Readiness
Evaluate the current 3DS environment against PCI 3DS requirements to identify scope, authentication components, data flows, and security control gaps.
Strengthen 3DS Security and Compliance Posture
Review architecture, authentication workflows, and control implementations to address identified gaps and align the environment with PCI SSC security expectations.
Validate Compliance and Support Audit Readiness
Provide documentation guidance, readiness reviews, and validation support to help demonstrate PCI 3DS compliance with confidence.

BENEFITS
What Organizations Achieve with SISA’s PCI 3DS Services
Accelerate Compliance Readiness
Achieve PCI 3DS alignment faster with a structured, expert-led compliance approach.
Strengthen Protection of 3DS Authentication Data
Ensure secure handling and transmission of sensitive authentication data across the 3DS ecosystem.
Reduce Fraud and Authentication Risk
Strengthen authentication controls to better protect card-not-present transactions.
Ensure Audit-Ready Compliance
Maintain defensible documentation and security controls to support seamless validation and audits.
Align with PCI SSC Security Best Practices
Implement security controls and processes aligned with PCI Security Standards Council requirements.
WHY SISA
Our Differentiators
End-to-End Compliance Confidence
From initial assessments through validation support, SISA simplifies PCI 3DS compliance with expert guidance, risk reduction, and a structured path to secure transactions.s
Deep Expertise in Payment Security
FWith extensive experience securing payment ecosystems, SISA brings specialized knowledge of card-not-present transaction environments, authentication frameworks, and PCI security standards.
Structured, PCI SSC–Aligned Methodology
SISA follows a proven, standards-aligned framework that combines architecture assessments, control evaluations, and validation support
Want to know more?
FAQs
The PCI 3DS (Three-Domain Secure) Standard defines physical and logical security requirements to protect the environments where 3DS components are hosted. It secures card-not-present (CNP) transactions by providing an additional layer of authentication.
The standard protects three specific domains: the Issuer Domain (the bank issuing the card), the Acquirer Domain (the merchant's bank), and the Interoperability Domain (the payment systems that connect them).
Any third-party service provider that manages or hosts 3DS components—specifically Access Control Servers (ACS), Directory Servers (DS), or 3DS Servers (3DSS)—on behalf of merchants or issuing banks must validate their compliance.
PCI DSS secures the general storage and transmission of cardholder data, while PCI 3DS specifically secures the infrastructure and cryptographic keys used for real-time identity authentication during digital (card-not-present) checkout flows.
No, PCI 3DS is a complementary standard. While PCI 3DS secures the authentication process, the entity must still comply with PCI DSS if they capture, store, or transmit primary account numbers (PAN) during the transaction.
Service providers hosting 3DS components must undergo an official assessment annually by a recognized 3DS Assessor to ensure continuous protection against emerging e-commerce fraud vectors.
The audit evaluates network security controls, system hardening, logical access management, and the cryptographic procedures used to protect 3DS authentication data and cryptographic keys within the designated 3DS environment.
SISA acts as an approved 3DS Assessor to evaluate your Access Control Servers, Directory Servers, and 3DS Server environments. We help service providers validate their security controls to ensure frictionless and secure digital authentication.
PCI 3DS compliance is essential for the e-commerce and financial technology (FinTech) industries. It specifically targets third-party service providers, payment gateways, and acquiring banks that host Access Control Servers (ACS) or Directory Servers to authenticate card-not-present digital transactions.


