Cybersource Security Update - TLS Certificate

The Venetian received the following message from Cybersource and would like to know if this will impact their Cybersource gateway in Momentus? 

@... Ryan Ungerboeck 

Dear Valued Customer,

In alignment with new CA/Browser Forum regulations, the maximum TLS certificate lifetime will be reduced gradually as follows:

• From today until March 15, 2026, the maximum lifetime for a TLS certificate is 398 days.
• As of March 15, 2026, the maximum lifetime for a TLS certificate will be 200 days.
• As of March 15, 2027, the maximum lifetime for a TLS certificate will be 100 days.
• As of March 15, 2029, the maximum lifetime for a TLS certificate will be 47 days.

For more information about the TLS certificate lifetime changes, please visit the following link:

https://www.digicert.com/blog/tls-certificate-lifetimes-will-officially-reduce-to-47-days

How is this change affect Cybersource connectivity?

Server‑level (leaf) SSL/TLS certificates issued by Cybersource will remain valid until their scheduled expiration. Server‑level (leaf) TLS certificates have shorter lifespans and must be reissued more frequently. Cybersource therefore recommends that clients trust the root certificate instead.

What is Cybersource’s recommendation?

Cybersource continues to recommend trusting the Root TLS certificates for all secure endpoints. This approach removes the need for periodic renewal of server‑level certificates and helps prevent connection failures caused by expired leaf certificates.

How can I tell what TLS certificate I am using?

You will need to engage your server administrator or your network support team.

Where can I find the TLS Root certificate?

Please ensure that you continue to trust the root certificate to maintain connectivity with Cybersource endpoints. You can download the root certificate here:

https://support.visaacceptance.com/knowledgebase/Knowledgearticle/?code=KA-09802

Please contact your Customer Support representatives for any questions you may have about this change.

Thank you,

Cybersource Customer Support