The 3D Secure service has returned to normal as of 13:15 UTC.
Posted 24 days ago. Jan 24, 2019 - 13:41 UTC
Impacted transactions will have a 3DS response of "authentication_unavailable". Engineers are working urgently with our 3DS provider to resolve.
Posted 24 days ago. Jan 24, 2019 - 13:32 UTC
Some merchants may be experiencing an elevated rate of errors when initializing 3D Secure due to an upstream issue with our 3DS provider. Engineers are engaged with our partner and updates will be provided as they are available.