June 24th 2021
Strong Customer Authentication (SCA) – Impact Assessment – May 2021
CMSPI’s insights team has been analysing retailer Strong Customer Authentication testing data to show the potential sales at risk and overall readiness of the industry.

Our analysis of May data illustrates significant transaction failure with the estimated European failure rate on transactions at 26% compared to 30% in April 2021.
Although the improvement will be welcomed by merchants, the estimated failure rate is still considerably higher than what the industry is aiming for.
Key findings in this update include:
- Estimated average failure rate in Europe at 26% in May
- Estimated annual sales at risk of €80 billion
- The failure rate for Germany is estimated to be at 39%, significantly higher than the European weighted average of 26%