Payment Fraud Regulation for Fintech Leaders

A fraud loss rarely starts with a failed transaction. More often, it starts months earlier: a customer journey built without meaningful friction, a third-party provider that cannot supply usable data, or a compliance policy that exists on paper but is not reflected in system rules. Payment fraud regulation is therefore not a narrow legal workstream. For payment firms, EMIs, crypto businesses and platforms handling client funds, it is a core operating requirement that affects authorisation, bankability, customer trust and unit economics.

Payment fraud regulation is a product issue

Regulators do not assess fraud controls solely by asking whether a firm has an anti-fraud policy. They examine whether governance, technology, transaction monitoring, customer communications, complaints handling and incident reporting work together in practice. A policy that says payments are monitored is of limited value if the business cannot show which alerts are generated, who reviews them, how quickly cases are escalated and why a payment was released or stopped.

For UK-facing payment businesses, the regulatory picture includes payment services rules, conduct expectations, anti-money laundering obligations, data protection requirements and operational resilience duties. Firms serving the EU must also account for the PSD2 framework while preparing for its replacement through PSD3 and the Payment Services Regulation as the legislative programme develops. DORA adds a further dimension for relevant EU financial entities: fraud prevention depends on ICT governance, outsourced-provider oversight, incident management and tested continuity arrangements.

This is why fraud regulation must be considered during product design. Features such as instant onboarding, saved beneficiaries, high transaction limits, remote account recovery and crypto-to-fiat conversion may increase conversion. They can also create obvious routes for account takeover, authorised push payment fraud, mule activity and social engineering. The commercial question is not whether to introduce friction. It is where friction prevents material loss without driving legitimate customers away.

Authentication is necessary, but not sufficient

Strong customer authentication remains central to payment security. Yet a fraudster who has manipulated the customer into approving a payment may pass authentication successfully. Firms need to distinguish unauthorised transactions from scams where the customer appears to have authenticated the instruction.

That distinction matters for investigation, liability and reimbursement, but it should not create a false sense of security. Behavioural signals, device intelligence, beneficiary risk indicators, velocity checks and payment context can reveal a high-risk transaction even where credentials and authentication are valid. A well-designed control environment combines these signals rather than treating any one of them as decisive.

Map the rules to the operating model

The fastest way to create gaps is to copy a generic compliance manual. Payment fraud exposure varies sharply between a card issuer, an e-money institution, a merchant acquirer, a money remittance business, a cryptoasset service provider and a marketplace that uses a regulated payment partner.

Start with the payment flows. Identify who holds funds, who initiates each payment, whether the firm controls customer authentication, which parties screen the transaction, and which party bears contractual and regulatory responsibility if fraud occurs. Then map the flow against customer type, channels, territories, currencies, transaction values and third-party dependencies.

This exercise often exposes uncomfortable issues. A firm may rely on its banking partner for sanctions screening while retaining responsibility for customer risk assessment. It may outsource identity verification but have no right to audit the provider's performance. Or it may operate a white-label model where the brand controls the customer relationship but cannot access the evidence needed to investigate a disputed payment. These are operating-model risks, not documentation defects.

The controls regulators and banks expect to see

A credible framework is evidence-led. It should explain the control, assign an owner, set a review frequency and preserve records that demonstrate performance. Four connected areas deserve particular attention.

Customer and account controls. Onboarding should verify identity and assess fraud risk proportionately, with enhanced measures for higher-risk profiles. Account changes, credential resets and the addition of a new device require particular scrutiny because fraudsters frequently target recovery processes rather than initial registration. Limits, cooling-off periods and step-up checks should be configurable by risk, not applied blindly to every user.

Transaction monitoring and intervention. Monitoring rules should cover more than AML red flags. Look for abnormal payee creation, rapid movement of funds, unusual device or location patterns, changes in transaction behaviour, repeated failed authentication and activity consistent with mule accounts. An alert is only useful if the case-management process supports timely decisions. Where a payment is stopped, staff must have clear authority, escalation routes and customer communication scripts.

Governance and reporting. Senior management needs meaningful management information: losses by fraud type, false-positive rates, blocked-payment rates, customer complaints, reimbursement outcomes, alert ageing and losses linked to a specific channel or provider. Reporting should show trends, not merely totals. A rising rate of account recovery fraud may indicate a product weakness that transaction monitoring alone cannot solve.

Third-party oversight. Payment firms commonly depend on cloud providers, KYC vendors, fraud engines, programme managers, processors and correspondent banks. Contracts should allocate responsibilities clearly, require incident notification, protect audit and information rights, and address business continuity. Delegating a process does not delegate regulatory accountability.

Reimbursement changes the economics of fraud

The UK approach to authorised push payment fraud reimbursement has made the financial impact of scam prevention more immediate for payment service providers. For in-scope payments, firms must understand the applicable reimbursement rules, exceptions, claims process, evidential standards and allocation arrangements within the relevant payment system.

Do not treat reimbursement as a back-office claims problem. It should influence payment design and fraud operations. If a firm cannot demonstrate effective warnings, proportionate intervention, prompt case handling and fair outcomes, its loss exposure and conduct risk will increase together.

There is a trade-off. Over-blocking legitimate transactions may lead to complaints, abandoned journeys and lost merchant revenue. Under-blocking exposes customers and the firm to losses that may be difficult to recover. The right calibration depends on the product, customer cohort, payment rail and available data. Regulators and banking partners will generally expect a reasoned methodology, documented thresholds and regular tuning, not a claim that an automated tool makes perfect decisions.

Cross-border activity creates hidden gaps

A group serving customers across the UK, EEA and other markets cannot safely assume one fraud framework will meet every local requirement. Rules on authentication, reporting, safeguarding, outsourcing, data sharing, reimbursement and complaints can differ. So can supervisory expectations.

This is especially relevant for firms using an EU entity for EEA activity, a UK entity for domestic payments and separate partners for acquiring or settlement. The group should maintain a clear jurisdictional matrix showing which entity performs each regulated activity, which rulebook applies and who owns each control. Without it, a serious incident can produce conflicting customer responses, delayed notifications and uncertainty over liability.

Crypto businesses should take the same approach. Blockchain analytics, wallet screening and travel rule processes can strengthen the control environment, but they do not replace payment fraud measures where fiat on-ramps, cards or customer accounts are involved. Fraud, AML and sanctions risks often overlap, yet they are not identical and should not be investigated through a single undifferentiated process.

Build the evidence before the incident

A regulator, auditor, banking partner or prospective acquirer will ask a practical question: can the business prove that its framework works? The answer lies in records. Keep risk assessments current, document control changes, retain alert decisions, test staff knowledge, review outsourced providers and run scenario-based exercises for account takeover, APP scams, system outages and data compromise.

Testing should include real operational pressure. Can the fraud team halt suspicious payments outside normal hours? Can customer support explain a delayed payment without disclosing information that assists a fraudster? Can compliance retrieve the relevant customer, device, authentication and transaction evidence quickly? A framework that works only in a spreadsheet will not withstand a major incident.

For businesses approaching authorisation, expanding into a new jurisdiction or seeking stronger banking relationships, this preparation can materially reduce avoidable delay. NUR Legal supports firms in turning regulatory requirements into documented, implementable controls aligned with the actual payment model.

The useful next step is not to buy more technology or add another policy. It is to identify the point where a fraud attempt enters your customer journey, decide who must act, and make sure the business can prove that action was taken. Contact us to find the best solution.