Financial Cyber Security Services

The fintech landscape has evolved beyond fast onboarding and slick apps. Today’s platforms must secure complex B2B financial infrastructure, autonomous AI decision systems, and expanding Open Finance integrations – all while meeting strict regulatory expectations.

  • CREST accredited security testing for digital banking, payment gateways, and insurtech platforms
  • Open Banking, embedded finance, and KYC security assessments
  • Compliance and resilience support across PCI DSS, PSD2, FCA, DORA, and Cyber Essentials Plus

Get in touch

No salesy newsletters. View our privacy policy.

Why Fintech Security Demands Specialist Expertise

  • Fintech platforms handle high-value transactions across complex API and cloud ecosystems
  • Rapid integration with third-party providers increases operational and security exposure
  • AI-driven financial decision systems introduce new autonomous risk vectors
  • Legacy-to-cloud migration phases create temporary but critical attack surfaces
  • Expanding Open Finance regulations demand specialist, sector-focused security expertise
FINTECH SECURITY SPECIALISMS
Digital Banking & Wallet Security
1
2
Payment Gateway Infrastructure
Open Banking & API Protection
3
4
Insurtech & AI Governance
Regulatory & Compliance Oversight
5

Is your fintech platform prepared to withstand modern cyber threats?

Why Fintechs Choose Cyphere?

Digital Banking and Neobanks
Digital-only banks concentrate risk in mobile apps, cloud infrastructure, and fully remote onboarding. We test core banking platforms, API gateways, and smart wallet implementations. For firms running on BaaS (Banking-as-a-Service) infrastructure — where multiple brands share the same plumbing — we assess the security of that shared layer. During legacy-to-cloud migrations using platforms like Thought Machine or Mambu, we act as the security overlay for the transition, particularly during the co-existence phase where data is most exposed.
Paytech and Payment Gateways
Payment platforms process high-value transactions in real time, leaving minimal fraud detection windows. We secure payment orchestration systems, PSP infrastructure, and merchant acquiring platforms. That includes embedded payments built directly into non-financial software, real-time payment risks under the UK's New Payments Architecture, and B2B spend management platforms handling corporate cards and automated treasury operations. PCI DSS 4.0 deadlines are live — we help you meet them without stalling your product roadmap.
Insurtech Platforms
Insurtech firms automate claims and underwriting at speed. We make sure that speed doesn't come at the cost of policyholder data or algorithm integrity. Our assessments cover IoT and telematics data pipelines, third-party data provider integrations, and the expanding Open Finance data sharing that now extends into insurance. Where agentic AI monitors transactions for fraud in real time, we validate the guardrails preventing autonomous systems from being manipulated.
Open Banking and Embedded Finance
Open Banking is evolving into Open Finance — sharing data across insurance, pensions, and mortgages for a 360-degree financial view. That's a significantly broader attack surface. We review TPP integrations, consent management platforms, BaaS API security, and PSD2/PSD3 compliance. For embedded lending (BNPL for B2B and high-ticket B2C), we assess the API integration risks created when non-financial brands offer regulated products.
KYC and Identity Verification
Identity platforms guard the front door of financial services. We test e-KYC onboarding flows, biometric verification systems, and controls against synthetic identity fraud — including AI-generated identities designed to bypass automated checks. Our assessments align with the UK DIATF (Digital Identity and Attributes Trust Framework), which we've delivered against for clients across financial services, legal, recruitment, and real estate sectors.
Lending, Wealthtech, and Credit Platforms
Credit decisioning engines using Open Banking transaction data instead of traditional bureau scores need robust integrity controls. We assess loan origination systems, alternative data protection, and revenue-based financing platforms lending against recurring SaaS revenue. For wealthtech, we cover robo-advisory platforms, portfolio management APIs, fractional investing systems, and pensiontech platforms consolidating legacy pension pots.
Regtech, BNPL, Cross-Border, and Marketplace Platforms
Compliance automation, regulatory reporting integrity, and ESG reporting tools each carry distinct risks. We assess BNPL fraud prevention, cross-border FX platform security, sanctions screening, mobile wallet tokenisation, P2P transaction controls, and multi-sided marketplace platforms where escrow, settlement, and seller verification all need to hold up under pressure.

Why Trust Cyphere with Your Financial Cybersecurity?

01 CREST-Accredited
Expertise
02 Global
Experience
03 24/7 Vigilance
04 Comprehensive
Solutions
05 Rapid
Response
06 Tailored
Approach
07 Proven
Track Record

Don’t leave your fintech infrastructure exposed. Partner with Cyphere for resilient, regulator-aligned cyber security.

How Cyphere Secures Fintech Platforms

Ransomware & API Exploitation
Supply Chain Risk
Agentic AI Risks
Synthetic Identities
Account Takeover
Insider Threats
01

Ransomware & API Exploitation

Ransomware operators go after core banking and payment systems for maximum disruption. Double extortion with customer financial data raises the regulatory stakes significantly. At the same time, Open Banking endpoints and payment orchestration APIs attract targeted attacks — authentication bypass, broken object-level authorisation, and logic flaws that enable unauthorised fund movement.

02

Supply Chain & SaaS Risk

Your platform likely depends on Plaid, Stripe, or a core banking SaaS vendor like Mambu or Thought Machine. A compromise in any of them cascades directly into your environment. BaaS platforms amplify this — multiple brands sharing infrastructure means one breach affects everyone on the stack. Code library vulnerabilities and inadequate vendor oversight compound the exposure.

03

Agentic AI & Autonomous Risks

This goes beyond chatbot prompt injection. Agentic AI systems that execute wire transfers, adjust credit limits, or switch providers autonomously are high-value targets for instruction injection. A compromised agent can bypass human-in-the-loop approvals and act on manipulated instructions. We test the guardrails preventing autonomous financial logic from being tricked.

04

Fraud & Synthetic Identities

Faster Payments reduce fraud detection windows to seconds. Authorised push payment scams exploit trust rather than technical flaws. Meanwhile, AI-generated synthetic identities bypass traditional KYC at scale, enabling account farming, document forgery, and biometric spoofing that automated verification systems struggle to catch.

05

Credential Attacks & Takeover

Credential stuffing against banking apps, MFA bypass techniques, and session hijacking remain persistent. Digital wallet account takeover is particularly damaging — super-apps handling identity, loyalty, and payments mean a single credential compromise can expose multiple financial services simultaneously.

06

Insider Threats & Modernisation

Core banking modernisation projects create temporary elevated access that often lingers. Developer credentials during migration, third-party contractor access to BaaS infrastructure, and privileged user monitoring gaps all create vectors that standard tooling misses. The co-existence phase between legacy and cloud systems is when insider risk peaks.

Navigating Fintech Regulatory Complexity

Compliance alone is no longer enough for fintech platforms. Evolving regulations such as PCI DSS, PSD2, FCA resilience requirements, and DORA demand security controls that not only meet standards but also withstand real-world cyber threats and operational disruption.
Fintech Compliance Grid - 10 Cards
01

PCI DSS 4.0

Secure high-velocity payment card data environments

02

PSD2 & PSD3

Strong Customer Authentication & TPP standards

03

DORA

Digital operational resilience & TLPT mandates

04

UK DIATF

Digital Identity and Attributes Trust Framework

05

FCA Duty

Meet Operational Resilience & Consumer Duty outcomes

06

GDPR

Manage privacy risks in Open Finance ecosystems

07

CE Plus

Body-certified Cyber Essentials Plus validation

08

ISO 27001

Global information security management standards

09

SOC 2

Trust service criteria for security & availability

10

Open Finance

Secure data sharing across pensions & insurance

Cyphere's Fintech Security Projects

Digital Banking & Wallet Security

Secured digital challenger banks including mobile app assessments, smart wallet reviews, and API gateway security. Assessed BaaS platform security for multi-brand banking infrastructure.

Payment Platform Assessments

Tested high-risk trading platforms, FIX protocol implementations, futures trading applications, and payment gateway infrastructure using CREST accredited methodologies.

Banking Infrastructure Reviews

Evaluated Connect Direct systems, message queuing services, and critical back-end infrastructure for major UK banks — including security oversight during legacy-to-cloud migration.

Open Banking & API Security

Assessed TPP connections, Open Banking integrations, and embedded finance APIs under PSD2 requirements. Reviewed consent management and BaaS API security for Open Finance.

Regulatory Compliance & Certification

Supported FCA alignment, PCI DSS compliance, DIATF readiness, and Cyber Essentials Plus certification for financial institutions across retail banking, insurtech, and fintech.

Banking Transformation Programmes

End-to-end security oversight for major banking transformation programmes, ensuring cloud-native platforms met security standards during the critical co-existence phase with legacy systems.

What Threatens Fintech Platforms Today

Digital Banking

Digital Banking & Wallet Security Assessments

Payment Platforms

High-Risk Payment Platform & Gateway Testing

Banking Infrastructure

Critical Banking Infrastructure & Back-end Reviews

Open Banking

Open Banking, API & Embedded Finance Security

Compliance

FCA, PCI DSS & DIATF Regulatory Compliance

Transformation

Banking Transformation & Cloud Migration Oversight

Key Cyber Security Services - Fintech Sector

This highlights Cyphere’s project-based experience across the fintech ecosystem, including digital banks, payment platforms, insurtech providers, wealthtech firms, embedded finance operators, and financial technology programmes across the UK and European markets.
  • PCI DSS 4.0 — Enhanced authentication and encryption requirements to meet the 2025 live deadlines.
  • PSD2, PSD3 & Open Finance — Strong Customer Authentication (SCA) and secure TPP standards across the expanding data sharing scope.
  • FCA Operational Resilience — Stress-testing and third-party oversight requirements to ensure consumer outcome protection.
  • DORA Compliance — ICT risk management and Threat-Led Penetration Testing (TLPT) for critical financial entities.
  • UK DIATF — Secure, compliant identity verification standards for financial services and legal sectors.
  • ISO 27001 & Cyber Essentials Plus — Industry-standard certifications that lower cyber insurance premiums and build enterprise trust.

Specialist fintech cyber security expertise built around resilience, compliance, and secure innovation

Frequently Asked Questions

Why are fintech companies prime targets for cyber attacks?
Attackers target fintech organisations to monetise highly sensitive financial data, payment credentials, and real-time transaction flows. The sector’s dependence on digital onboarding, APIs, and instant payment infrastructure makes it especially vulnerable to account takeover, API abuse, business email compromise, and transaction manipulation fraud.
How do you protect sensitive customer financial data?
We rigorously test access controls, encryption standards, identity management, and data leakage prevention across payment systems, digital banking platforms, customer dashboards, and transaction processing environments. Our financial-risk-aware testing methodology directly addresses regulatory, operational, and reputational risks linked to financial data exposure.
What measures secure core banking, payment, and transaction systems?
We deliver CREST-accredited penetration testing across payment gateways, lending platforms, trading systems, and financial processing applications. These assessments validate authentication controls, transaction integrity protections, fraud-prevention mechanisms, and API security with external banking and financial networks.
How does Cyphere help fintech firms meet regulatory and compliance requirements?
We conduct targeted gap analysis aligned with FCA expectations, PCI DSS requirements, PSD2 open-banking security mandates, and global data protection frameworks such as GDPR. This ensures your fintech infrastructure maintains strong governance over customer funds, digital identity verification, and transaction security.
Can you respond quickly to ransomware or financial data breaches?
Our incident response services enable rapid containment of attacks affecting payment platforms, financial records, or customer accounts. We support forensic investigation, system recovery, and structured regulatory notification processes while helping maintain operational continuity and customer trust.
How do you prevent business email compromise and payment fraud?
We assess Microsoft 365 and collaboration environments for compromise indicators, misconfigurations, and phishing exposure. We also evaluate transaction approval workflows, treasury controls, and payment verification processes to reduce risks of invoice fraud, unauthorised transfers, and executive impersonation attacks.
What role does security awareness play for fintech teams?
Our phishing simulations replicate realistic fintech threats such as fake payment alerts, investor communications, regulatory notices, and vendor invoice scams. We then deliver targeted training programmes designed around the fraud scenarios most relevant to finance, operations, and customer-support teams.
Are third-party fintech vendors and cloud platforms assessed for security risks?
We conduct supply-chain risk assessments covering KYC providers, payment processors, banking-as-a-service platforms, financial analytics tools, and cloud infrastructure partners. We also perform AI-risk assessments to prevent sensitive financial datasets from being unintentionally exposed through third-party AI or automation tools.
Can Cyphere support compliance across global fintech regulations?
We provide tailored compliance guidance mapping security controls to PCI DSS, ISO 27001, SOC 2, PSD2, and regional financial supervisory requirements. As a Cyber Essentials Plus certification body, we also deliver recognised baseline assurance that strengthens investor confidence and enterprise partnership readiness.
How often should fintech companies conduct penetration testing?
Annual CREST-accredited testing is considered a minimum baseline. However, fintech organisations should increase testing frequency following major product launches, payment feature rollouts, regulatory onboarding changes, infrastructure migrations, or integrations with new banking or financial partners.
What makes Cyphere’s approach unique for fintech organisations?
We combine deep technical expertise with strong domain understanding of financial risk, digital payment ecosystems, fraud vectors, and regulatory scrutiny. Our assessments are engineered to be non-disruptive to live transaction environments while aligning security improvements with fintech growth, funding readiness, and market expansion goals.

Cost-effective and quality pen testing services to address your primary security concerns

How "Defensible" is your firm compared to UK peers?

Most SMBs and mid-market firms have “silent” gaps in their people, process and tech controls implementation. Take the 90-second maturity audit to see your percentile rank.