Strong Customer Authentication (SCA) is a European security requirement (under PSD2) that adds an extra layer of protection when you perform sensitive banking actions. You may be asked to confirm your identity when:

When SCA is triggered, you'll receive a confirmation prompt — typically via a push notification, SMS code, or in-app approval. You need to complete this step to authorize the action.

SCA protects you from unauthorized transactions. If you receive an SCA prompt for an action you didn't initiate, do not approve it and contact support immediately.