⬢ Built for FinTech · CREST · APRA-Aligned

Penetration Testing for FinTech Payments, lending, BNPL and neobanks — tested for APRA, PCI DSS and SOC 2

Australian FinTech operates under unforgiving conditions: APRA CPS 234 for entities and their service providers, PCI DSS v4.0.1 Requirement 11.4 for anything touching card data, SOC 2 for US enterprise integration, and the operational reality that FinTech breaches make headlines on the same day.

Sector-aware penetration testing

Built around the risks that actually matter in this sector — compliance evidence, business logic abuse, data exposure, and buyer assurance.
Engagement snapshot

Scope, controls and attack paths mapped upfront

A clean view of what will be tested, why it matters, and what evidence the report will produce.
Definition

What is FinTech Penetration Testing?

FinTech penetration testing is a manual security assessment focused on the failure modes specific to financial technology platforms: transaction integrity, payment flow tampering, fraud-control bypass, KYC/AML circumvention, API authorisation flaws in financial data, and abuse of trading or lending logic.

TL;DR

What is FinTech Penetration Testing?

FinTech penetration testing is a manual security assessment focused on the failure modes specific to financial technology platforms: transaction integrity, payment flow tampering, fraud-control bypass, KYC/AML circumvention, API authorisation flaws in financial data, and abuse of trading or lending logic.
FinTech pentests differ from generic application pentests because the regulatory load is heavier (APRA CPS 234, PCI DSS, ASIC) and the attack surface is wider — every FinTech sits at the centre of an integration web (payment processors, banking-as-a-service providers, KYC vendors, open banking APIs) where one weak link compromises the whole stack. Penva Security’s FinTech engagements test the platform and its trust boundaries with the integration partners.
FinTech Threat Model

How FinTech Platforms Actually Get Breached

FinTech breach reports cluster around a small set of attack patterns — distinct from generic SaaS. We test each one explicitly.

Transaction Integrity & Race Conditions

Double-spend attacks, race conditions in payment processing, integer overflow in amount fields, idempotency-key abuse, settlement-window manipulation. Pure logic flaws — invisible to scanners, expensive when found by attackers.

KYC & Identity Verification Bypass

Document upload abuse, OCR confusion attacks, sanctioned-name list bypass via Unicode tricks, identity-verification provider integration weakness, re-use of verified identities across accounts.

Payment Flow Tampering

Card-data interception, payment-redirect abuse, BIN-attack vulnerability, refund logic abuse, currency-conversion arbitrage. PCI DSS v4.0.1 Requirement 11.4 specifically targets this class of testing.

Fraud Control Bypass

Rate-limit evasion via account-rotation, velocity-check bypass through distributed requests, behavioural-fingerprint spoofing, allowlist-token leakage. Fraud teams often have visibility into the controls but not whether they can be circumvented.

Banking-as-a-Service Integration Weakness

Compromised webhook signing, OAuth client misconfiguration with the BaaS provider, IDOR in account / transaction lookup APIs, replay attacks against settlement endpoints. The integration boundary is where most modern FinTech architectures fail.

Trading & Lending Logic Abuse

Margin calculation flaws, leverage-limit bypass, interest-rate manipulation, loan-eligibility logic abuse, position-limit circumvention. These pass automated testing because they’re application logic — and they cost real money.
Engagement Scope

What a Typical FinTech Engagement Covers

FinTech scope is wider than generic SaaS because the regulatory and integration surface is wider.

01

Customer-Facing App / API

Authentication, MFA bypass, session management, transaction-level authorisation, OWASP API Top 10 coverage.
02

Payment Flows

End-to-end payment-processing testing, card-data handling validation, refund logic, currency conversion. PCI DSS Req 11.4 scope.
03

KYC / AML Workflows

Document upload, identity-verification integrations, sanctioned-name screening, re-verification flow tampering.
04

Banking Integration Surface

BaaS provider OAuth, webhook signature validation, account/transaction APIs, settlement endpoints, idempotency handling.
05

Admin / Back-Office

Internal tooling, manual-review queues, fraud-control consoles, refund / chargeback workflows. Privileged routes tested separately.
06

Cloud Infrastructure

AWS / Azure configuration — exposed services, IAM weaknesses relevant to financial-data handling, segmentation of CDE if PCI in scope.
Compliance Mix

FinTech Compliance Evidence

Australian FinTech typically needs APRA CPS 234 (for ADIs and their service providers), PCI DSS (for card data), and SOC 2 (for US integration). We design engagements to produce evidence for the combinations that apply.

Priority

APRA CPS 234

Paragraphs 27–28 — information security testing for ADIs, insurers, super funds, and increasingly their third-party service providers. Sydney FinTech sees this most.
Read more →
Priority

PCI DSS v4.0.1

Requirement 11.4 — penetration testing for any environment storing, processing, or transmitting cardholder data. Stricter requirements landed in 2024.
Read more →
Common

SOC 2

Trust Services CC7.1 — required by US enterprise customers and increasingly demanded by Australian banks for FinTech partners.
Read more →
Common

ISO 27001:2022

Annex A.8.8 / A.8.29 — baseline expected by banking partners, BaaS providers, and procurement teams across the AU financial services stack.
Read more →
Common

Essential Eight

ML2 — increasingly cited in tender responses and partnership agreements with regulated financial institutions.
Read more →
Where applicable

GDPR / Privacy Act

Article 32 + APP 11 — for FinTech with EU customers and for the Privacy Act Reform’s tighter security obligations.
Read more →
Engagement Flow

How a Penva Security FinTech Engagement Runs

Typical 7–12 business days of active testing for a FinTech engagement, longer than generic SaaS because the integration surface and regulatory load are wider.

01

Scoping & Threat Modelling

Scoping call covers your payment flows, BaaS integrations, KYC provider, fraud-control architecture, and any APRA-regulated relationships. Fixed quote within 24 hours.
02

AI-Accelerated Reconnaissance

Day 1. Full attack-surface mapping including third-party integration endpoints, API discovery, authentication flow analysis, technology fingerprinting.
03

Manual Exploitation

Days 2–10. CREST-certified testers work through the FinTech threat model — transaction integrity, KYC bypass, payment-flow tampering, fraud-control bypass, integration-boundary abuse.
04

Reporting & Walkthrough

Days 11–12. Audit-ready report with APRA / PCI DSS / SOC 2 evidence sections, executive summary, technical findings with CVSS scoring, remediation guidance, 1:1 walkthrough.
05

Free 60-Day Retest

Free remediation retest validates closure — the evidence APRA tripartite reviewers and PCI QSAs specifically request.
Proof points

FinTech Engagements at Penva Security

Industry-specific scope, certifications and turnaround at a glance.

APRA
CPS 234 aligned
PCI DSS
v4.0.1 Req 11.4
AU
Jurisdiction default
7–12d
Typical active testing
FAQ

FinTech Pentest — Common Questions

Direct, industry-specific answers to the questions FinTech buyers ask most often. Updated May 2026.

What's specific about pentesting FinTech compared to generic SaaS?
Three things. First, transaction integrity — race conditions, double-spend, idempotency abuse, payment-flow tampering are FinTech-specific failure modes. Second, the integration surface — every FinTech sits inside a web of BaaS, payment processor, KYC, and fraud-vendor relationships, and the integration boundaries are where breaches happen. Third, the regulatory load — APRA CPS 234, PCI DSS v4.0.1, SOC 2, and ASIC oversight stack together in a way generic SaaS doesn’t face. Engagements take longer (7–12 days vs 5–10) and the threat model is different.
Does APRA CPS 234 apply to my FinTech if I'm not a bank?
Possibly. CPS 234 directly applies to APRA-regulated entities (ADIs, general and life insurers, super funds, private health insurers). It also applies indirectly through paragraph 13 — APRA-regulated entities must ensure their service providers manage information security to a standard consistent with CPS 234. So if you sell FinTech to an Australian bank, super fund, or insurer, your customer’s CPS 234 obligation flows down to you. See our APRA CPS 234 page.
Do we need PCI DSS testing if our payment processor handles all card data?
It depends on your scope. If your platform fully outsources card handling to a hosted payment page (Stripe Checkout, Braintree Drop-In, similar) and your servers never see card numbers, PAN or CVV, you may qualify for SAQ A and not need full Requirement 11.4 testing. If your platform touches card data at any point — even briefly, even in iframes — Requirement 11.4 likely applies. Penva Security’s scoping call covers this assessment explicitly.
Can we get APRA + PCI DSS + SOC 2 evidence from one engagement?
Yes, when scope and methodology are designed for it. The evidence requirements overlap heavily on penetration testing — what differs is the framing, the report structure, and the additional non-pentest evidence each framework needs. We produce a single engagement deliverable structured so APRA tripartite reviewers, PCI QSAs, and SOC 2 auditors each find the evidence they need without running three separate tests.
How do you test BaaS / banking integrations safely?
Carefully. We test the integration boundary — your code calling theirs, signature validation on their webhooks to you, OAuth client configuration, idempotency handling — without testing the BaaS provider’s infrastructure itself (which would require their authorisation). Most BaaS providers (Railsr, Solid, similar) have published guidance on what’s in and out of scope for partner pentests.
Do you handle KYC bypass testing?
Yes — including document-upload abuse, OCR confusion attacks, sanctioned-name list bypass through Unicode and homoglyph tricks, identity-verification provider integration weakness, and re-verification flow tampering. This is one of the highest-yield areas on FinTech engagements and almost never appears in scanner-only testing.
How long does a FinTech engagement typically take?
7 to 12 business days of active testing for a typical FinTech application + API + integration surface, plus 1 to 2 days for reporting. Longer than generic SaaS (5–10 days) because the threat model is wider — transaction integrity, KYC, payment flows, and integration boundaries each need explicit attention.
Do you have AU jurisdiction handling for sensitive findings?
Yes — by default. All Penva Security testers are Australian-based. Sensitive findings, technical evidence, and report drafts stay in Australian jurisdiction. This matches APRA’s third-party-management expectations and removes the data-residency question that AU FinTech buyers often raise during procurement when evaluating US-based PTaaS platforms.
Next step

Ready for FinTech-Specific Penetration Testing?

Book a free 30-minute scoping call. Fixed-price quote within 24 hours. Human-led + AI testing. Audit-ready reports. Free retest within 60 days.

Ready for FinTech-Specific Penetration Testing?

Book a free 30-minute scoping call. Fixed-price quote within 24 hours. Human-led + AI testing. Audit-ready reports. Free retest within 60 days.