Marqeta engineers have confirmed the errors have subsided. Although we continue to await an RCA from Mastercard, evidence indicates they deployed a broken certificate bundle and have been progressively redeploying them them. We will continue to monitor for any additional lagging effects.
Posted Jul 17, 2026 - 10:30 PDT
Monitoring
On Wednesday, July 15, 2026, Marqeta engineers detected a new issue affecting Mastercard 3D Secure (3DS) authentication requests, starting at approximately 13:04 PT (20:04 UTC). Marqeta engineers have detected a decrease in the rate of errors. We are continuing to wait for guidance or confirmation from Mastercard that the issue has been resolved. A follow-up notification with more detail will be provided once Mastercard completes their analysis.
Posted Jul 16, 2026 - 11:29 PDT
Identified
On Wednesday, July 15, 2026, Marqeta engineers detected a new issue affecting Mastercard 3D Secure (3DS) authentication requests, starting at approximately 13:04 PT (20:04 UTC). Mastercard is continuing to work to determine the root cause and correct it. A follow-up notification with more detail will be provided once Mastercard completes their analysis.
Posted Jul 16, 2026 - 07:28 PDT
Update
On Wednesday, July 15, 2026, Marqeta engineers detected a new issue affecting Mastercard 3D Secure (3DS) authentication requests, starting at approximately 13:04 PT (20:04 UTC). Our team is actively investigating with Mastercard to determine the root cause and assess the full scope of impact. A follow-up notification with more detail will be provided once Mastercard completes their analysis.
Posted Jul 15, 2026 - 13:52 PDT
Investigating
On Wednesday, July 15, 2026, Marqeta engineers detected a new issue affecting Mastercard 3D Secure (3DS) authentication requests, starting at approximately 13:04 PT (20:04 UTC). Our team is actively investigating the root cause and assessing the full scope of impact. A follow-up notification with more detail will be sent within 30 minutes.