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October 27th 2021

Strong Customer Authentication (SCA) – Impact Assessment – September 2021

CMSPI’s insights team has been analysing retailer Strong Customer Authentication data to show the potential sales at risk and overall readiness of the industry.


Our analysis of September data yields an estimated European failure rate on transactions of 29% compared to 26% in August 2021. This estimate failure rate is not only too high, but represents a worsening of the situation with an estimated €90 billion of sales at risk when extrapolated over a 12 month period. Given the impact of this in terms of lost revenue for merchants, it is now more important than ever for retailers to actively optimise their ecommerce arrangements and counteract some of the impacts of SCA on revenue.

Key Findings in This Update Include:
  • Estimated average failure rate in Europe at 29% in September
  • Estimated annual sales at risk of €90 billion, over 40 times the value of fraudulent transactions in the SEPA region in 2018
  • The failure rate for Belgium is estimated at 44%, significantly higher than the European weighted average of 29%
Read the Full Report Below:

SCA Economic Impact Assessment - September 2021