# Degraded traffic on Mastercard 3DS

- Provider: [Marqeta](https://down.guide/marqeta)
- Level: confirmed
- Impact: Partial outage
- lasted 1d 21h
- started 2026-07-15 20:18 UTC
- 3DS
- id: DWN-37233edf19
- Official page: https://stspg.io/cbk9sxxs9k6x

## Updates from Marqeta
### 2026-07-15 20:18 UTC: 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.

### 2026-07-15 20:52 UTC: 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 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.

### 2026-07-16 14:28 UTC: 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.

### 2026-07-16 18:29 UTC: 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.

### 2026-07-17 17:30 UTC: resolved
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.

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