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As part of this renewal cycle, the root certificate will be removed from the certificate list presented by the following Cybersource endpoint URLs. According to RFC 5246, the root certificate is optional in the chain presented by the server, and clients are required to have the root certificate in their trust store. While there will be no change to the certificate currently in use, the root certificate will no longer be included in the presentation chain.

For further details, you can refer to the certificate list section of RFC 5246: [RFC 5246 - Section 7.4.2] at the below link:
https://datatracker.ietf.org/doc/html/rfc5246#section-7.4.2

The changes will be implemented on the following dates:

- CAS/TEST Environment: June 7, 2026
- Production Environment: July 7, 2026

Here is a list of Cybersource URLs:

CAS/TEST URLs:

accountupdatertest.cybersource.com
apitest.cybersource.com
batchtest.cybersource.com
api.accountupdatertest.cybersource.com
ics2wstest.ic3.com
ics2wstesta.ic3.com

Production URLs:

accountupdater.cybersource.com
api.cybersource.com
batch.cybersource.com
api.accountupdater.cybersource.com
ics2ws.ic3.com
ics2wsa.ic3.com
ics2ws.in.ic3.com
api.in.cybersource.com
batch.in.cybersource.com


Please ensure that you continue to trust the root certificate to maintain connectivity with Cybersource endpoints. You can download the root certificate from the .zip file in the Attachments section (below)
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