Payer Authentication {#payer-authentication}
============================================

25.09.02
--------

Updated XID Values
:
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) The Test Cases for 3-D Secure 2.x section were updated to better reflect which card schemes returned XID values during Enrollment and Validation. See [Test Cases for 3-D Secure 2.x](https://developer.cybersource.com/docs/cybs/en-us/payer-authentication/developer/all/so/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "").

Updated ECI String and ECI Raw Values for ITMX
:
![](/content/dam/documentation/cybs/en-us/topics/reference/notes/doc-relnotes/images/update-15x75.svg/jcr:content/renditions/original) The Test Cases for 3-D Secure 2.x section were updated to include ECI string and raw values for ITMX. See [Test Cases for 3-D Secure 2.x](https://developer.cybersource.com/docs/cybs/en-us/payer-authentication/developer/all/so/payer-auth/pa-testing-intro/pa-testing-3ds-2x-intro.md "")