Key Findings Microsoft disclosed that it automatically detected and mitigated a 15.72 Tbps DDoS attack, the largest ever observed in the cloud, targeting a single endpoint in Australia. The attack originated from the AISURU botnet, a Mirai-class IoT botnet powered by nearly 300,000 infected devices, mainly routers, security cameras, and DVR systems. The attack involved massive UDP floods from over 500,000 source IPs across various regions, with minimal spoofing and random sou