📍 Bolt Help / Integrations / 3D Secure 2.0 (3DS2) Integrations 3D Secure 2.0 (3DS2) Integrations For EU merchants, learn about employing 3D Secure 2.0 (3DS2) practices to help your business comply with Strong Customer Authentication (SCA). Page Contents Click to expand. A 3D Secure 2.0 (3DS2) integration can help your checkout comply with the European Strong Customer Authentication (SCA) requirements by adding a layer of security to online payments. Learn more about this industry standard security protocol from the 3DS2 documentation. Availability Bolt supports 3DS2 integrations for select use cases and processors. Contact your customer success manager (CSM) to determine whether a 3DS2 integration is right for your business.