3D Secure 2 Flow Explained

Here’s a diagram explaining the 3d secure 2 (3DS2) flow:

 

source: 3dsecure2

 

• Complete mobile integration with the development of SDK’s, allowing merchants to easily
  integrate the 3D Secure authentication process into their mobile applications
• Merchants can ensure that the authentication process looks and feels consistent with the rest of the app
• Dramatically increases the user experience on mobile devices, including non-browser based platforms and mobile integration
• Biometric authentication whilst still in the merchant’s app it will likely just feel like a valid security measure
• The merchant’s platform will only require additional authentication if the risk is high that will happen in only a small percentage of the transactions
• Authentication activity will be invisible to the cardholder