DDoS Attack Impacting ACS Service Availability (Resolved)

Incident Report for Entersekt

Resolved

We experienced a brief Distributed Denial of Service (DDoS) attack that affected our ACS (EU) services today, 24Feb2026, between 21:42 UTC and 21:44 UTC.

During this period, users may have experienced an increase in transactions resulting in statuses of U - Unavailable, Auth error, or Rejected.

Posted Feb 24, 2026 - 22:49 UTC

This incident affected: 3DS & Payment Authentication (3DS ACS - Europe).