Microsoft mitigated the largest cloud DDoS ever recorded, 15.7 Tbps

Original Article Summary
Microsoft says the Aisuru botnet launched a 15.7 Tbps DDoS on Azure from 500k IPs, using massive UDP floods peaking at 3.6 B pps. On October 24, 2025, Azure DDoS Protection detected and mitigated a massive multi-vector attack peaking at 15.72 Tbps and 3.64 bi…
Read full article at Securityaffairs.com✨Our Analysis
Microsoft's mitigation of the largest cloud DDoS ever recorded, peaking at 15.7 Tbps, marks a significant milestone in the company's ability to handle massive cyberattacks. The attack, launched by the Aisuru botnet from 500,000 IPs, used massive UDP floods to target Azure, but was successfully detected and mitigated by Azure DDoS Protection. This means that website owners using Azure services can take comfort in knowing that Microsoft's infrastructure is capable of withstanding even the most intense DDoS attacks. However, it also highlights the importance of monitoring AI bot traffic, as botnets like Aisuru can be used to launch devastating attacks. Website owners should be aware of the potential risks and take proactive steps to protect their online presence. To protect themselves, website owners can take the following steps: monitor their traffic for suspicious patterns, update their llms.txt files to reflect the latest botnet IP addresses, and consider implementing DDoS protection services to mitigate potential attacks. Additionally, website owners can review their security logs to identify potential vulnerabilities and stay informed about the latest cyber threats to ensure their online security.
Related Topics
Track AI Bots on Your Website
See which AI crawlers like ChatGPT, Claude, and Gemini are visiting your site. Get real-time analytics and actionable insights.
Start Tracking Free →

