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Whitepaper
Fraud

SEPA fraud detection: A fraud and compliance playbook for European payment service providers

SEPA Instant fraud: six typologies, key signals, and PSD3 liability.

Sardine's 'SEPA fraud detection' playbook cover for European payment service providers, dark blue with abstract wavy lines.

The EU's 2024 Instant Payments Regulation made SEPA Instant mandatory for eurozone PSPs in October 2025. A transfer initiated at 2 a.m. on a Sunday now settles in under 10 seconds and cannot be recalled.

That breaks the analyst queue, the batch fraud score, and the next-day return. This playbook shows European PSPs where the remaining detection surface lives, from the behaviour inside the payment session to the IBAN receiving the funds.

Inside, you'll find:

  • Six SEPA fraud typologies and the behavioural and IBAN-level signature each one leaves, covering APP, ATO and instant drain, BEC, cross-rail cashout, Direct Debit abuse, and mule networks
  • The session signals that distinguish a coached victim from a voluntary sender, including remote access tool presence, active call status, hesitation on confirmation screens, and copy-paste on IBAN fields
  • A four-band graduated intervention model that matches friction to cumulative risk score, and why in-session challenges become unsafe the moment a RAT is detected
  • A breakdown of what Verification of Payee catches, what it misses, and why coverage across the SEPA zone stays uneven until July 2027
  • Receiving-side controls for cross-border mule detection, from device intelligence at onboarding to IBAN velocity patterns after activation
  • Where EU fraud liability is heading under PSD3 and the EU AML Package, and what the UK PSR's 50/50 split between sending and receiving PSPs signals about the timeline

Download now and get all the insights.

Topics
Fraud

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