Highnote experienced a major incident on August 15, 2026 affecting Acquiring and Transaction Processing - MasterCard, lasting 1h 44m. The incident has been resolved; the full update timeline is below.
Affected components
Update timeline
- identified Aug 15, 2026, 04:45 AM UTC
Mastercard is having an outage across both issuance and acquiring
- identified Aug 15, 2026, 04:58 AM UTC
Mastercard is currently experiencing a global issue that is impacting transaction processing and may result in failed transactions for some customers. Mastercard is actively investigating the root cause and working to restore normal service as quickly as possible. Currently, they do not have an estimated time of resolution (ETA). We understand the impact this may have on your operations and are actively monitoring the situation with Mastercard. We will continue to provide updates as additional information becomes available.
- identified Aug 15, 2026, 05:00 AM UTC
Mastercard is currently experiencing a global issue that is impacting transaction processing and may result in failed transactions for some customers. Mastercard is actively investigating the root cause and working to restore normal service as quickly as possible. Currently, they do not have an estimated time of resolution (ETA). We understand the impact this may have on your operations and are actively monitoring the situation with Mastercard. We will continue to provide updates as additional information becomes available.
- resolved Aug 15, 2026, 06:23 AM UTC
Mastercard transaction processing across Issuing and Acquiring has been resolved. The incident did not impact access to the Highnote Platform API or Dashboard.