PAYMENT SECURITY & PCI-DSS V4.0

is Payment Gateway Audit Important

Protect customer payment credentials, prevent checkout tampering, and satisfy strict RBI Payment Aggregator and PCI-DSS v4.0 mandates. Lumiverse Solutions delivers comprehensive Payment Gateway security audits, cryptographic tokenization testing, and payment switch penetration assessments.

PCI-DSS v4.0
QSA Certified Audits
RBI PA/PG
Payment Aggregator Guidelines
100%
Cardholder Data Isolation

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Schedule a scoping consultation with senior payment security specialists

6 Core Disciplines of Payment Gateway Security

End-to-end security auditing covering API switches, encryption vaults, client-side scripts, and merchant integration hooks.

Payment API & Switch Penetration Testing

Auditing REST/SOAP payment initiation, callback webhooks, authorization endpoints, and settlement switches against tampering.

  • Idempotency key & race condition testing
  • Payment amount and currency tampering checks
  • HMAC webhook signature validation verification

Tokenization & Card Vault Cryptography

Verifying that Primary Account Numbers (PAN) and CVV codes are never stored in plain text, utilizing AES-256 and HSM-backed token vaults.

  • Token vault micro-segmentation review
  • Hardware Security Module (HSM) key rotation audit
  • Zero-storage card memory scrubbing validation

Magecart & Client-Side Skimming Defense

Auditing hosted checkout pages, iFrames, and SDKs against script injection, DOM manipulation, and unauthorized external data leaks.

  • Content Security Policy (CSP) enforcement
  • Subresource Integrity (SRI) verification
  • Real-time client-side script tamper monitoring

RBI Payment Aggregator (PA/PG) Compliance

Ensuring strict adherence to RBI Master Directions on Payment Aggregators, nodal account segregation, and Indian data localization.

  • Domestic payment data residency auditing
  • Multi-factor authentication for merchant portals
  • Quarterly vulnerability remediation SLAs

Merchant Portal & Settlement Security

Hardening merchant onboarding portals, refund triggering workflows, automated payout APIs, and dispute resolution interfaces.

  • BOLA/IDOR vulnerability testing on payout APIs
  • Role-based access control (RBAC) audits
  • Automated anomaly alerts for mass refunds

PCI Attestation of Compliance (AoC)

Guiding payment gateways and merchants through formal PCI-DSS v4.0 audits to issue legally recognized Attestation of Compliance (AoC) certificates.

  • SAQ-A, SAQ-A-EP, and SAQ-D audit verification
  • Report on Compliance (RoC) documentation
  • Annual ASV network vulnerability scanning

5-Stage Payment Gateway Security Audit Roadmap

A zero-downtime, compliance-tested methodology designed for high-throughput fintech infrastructure.

1
STAGE 1: ARCHITECTURE SCOPING

Cardholder Data Environment (CDE) Mapping

Identifying all servers, databases, third-party libraries, and network paths that transmit or process cardholder and payment data.

2
STAGE 2: OFFENSIVE SWITCH & API VAPT

Payment Logic & Exploit Verification

Executing controlled black-box and grey-box penetration tests on payment initiation, callback webhooks, and refund APIs.

3
STAGE 3: CRYPTOGRAPHIC & TOKEN AUDIT

Vault Security & Key Management

Auditing AES-256 / RSA encryption keys, HSM key lifecycle procedures, and database tokenization tables.

4
STAGE 4: CLIENT-SIDE & SDK HARDENING

Checkout iFrame & Script Inspection

Testing mobile SDKs (iOS/Android) and browser checkout iFrames for data leakage, insecure caching, and script tampering.

5
STAGE 5: STATUTORY CERTIFICATION

PCI AoC & RBI Compliance Sign-Off

Issuing the formal executive vulnerability dossier, PCI Attestation of Compliance (AoC), and RBI statutory compliance certificate.

Frequently Asked Questions

Key details regarding scoping, timelines, evidence handling, and deliverables.

We evaluate infrastructure against PCI-DSS v4.0, RBI Guidelines for Regulation of Payment Aggregators and Payment Gateways, OWASP API Security Top 10, and ISO/IEC 27001 ISMS controls.
Yes. All offensive testing is coordinated under strict Rules of Engagement. We use test payment credentials and sandbox environments for intrusive payloads, ensuring zero disruption to live customer transactions.
SAQ-A applies to merchants that completely outsource card processing to an iFrame/hosted page; SAQ-A-EP applies to merchants that host the checkout form but post data directly to a payment gateway; SAQ-D applies to all payment service providers and merchants that store, process, or transmit cardholder data directly.

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