Azure DDoS Protection Mitigates Record-Breaking 15.72 Tbps Attack
On October 24, 2025, Azure DDoS Protection detected and neutralized a 15.72 Tbps Distributed Denial-of-Service (DDoS) attack targeting a single endpoint in Australia—making it the largest DDoS event observed in the cloud to date. The attack, attributed to the Aisuru botnet (a Turbo Mirai-class IoT threat), dispatched nearly 3.64 billion packets per second from over 500,000 source IPs. Using its globally distributed defense infrastructure, Microsoft filtered and redirected malicious traffic in real time and maintained uninterrupted service availability for the affected tenant
The incident underscores how cloud-scale services must now defend against attacks sized beyond traditional benchmarks. For enterprise IT and security teams, this event emphasizes the importance of robust DDoS defenses, real-time simulations, and readiness assessments—especially as attacks grow in volume and complexity. Approaching the holiday season, Microsoft urged users to exercise caution and confirm all internet-facing applications are protected against DDoS attacks.
Posted by Redmondmag.com Editors on 11/18/2025