US Edition'Largest-Ever' Cloud DDoS Attack Pummels Azure
The Aisuru botnet exploited over 500,000 IoT devices to launch a 15.72 Tbps UDP flood lasting 40 seconds, disrupting Microsoft Azure and Cloudflare DNS services.
- On Oct. 24, Microsoft said the Aisuru botnet launched a 15.72 Tbps DDoS from over 500,000 IPs targeting a single public endpoint in Australia.
- Emerging in August 2024, Aisuru botnet ballooned in April 2025 after breaching a TotoLink router firmware update server and infecting approximately 100,000 devices.
- In technical terms, Sean Whalen, Azure Security senior product marketing manager, said the attack used high-rate UDP floods with minimal source spoofing, reaching nearly 3.64 billion packets per second for 40 seconds.
- Azure's protection service auto-detected and mitigated nearly 3.64 billion packets per second, Microsoft said, ensuring no customer workloads faced interruptions.
- Industry data show Cloudflare removed Aisuru-linked domains from its Top Domains ranking after they began outranking major sites, citing `The attacker is just generating a ton of requests, maybe to influence the ranking but also to attack our DNS service,' Cloudflare CEO Matthew Prince told KrebsOnSecurity at the time.
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Microsoft reports dismantling largest cloud DDoS attack ever
The post Microsoft reports dismantling largest cloud DDoS attack ever appeared on BitcoinEthereumNews.com. The denial-of-service (DDoS) attack detected on Microsoft’s cloud on October 24 has been taken down, the Windows operating system developer said on Monday. According to Microsoft’s blog, the DDoS assault targeted a single endpoint in Australia and reached 15.72 terabits per second (Tbps) and nearly 3.64 billion packets per second (pps). The…
Microsoft Azure Blocks Largest DDoS Attack in History — attack equivalent to streaming 3.5 million Netflix movies at once, 15.72 Terabits per Second from 500,000 IP addresses tied to IoT botnet - WorldNL Magazine
(Image credit: Getty Images / NurPhoto) Microsoft's Azure has mitigated the largest botnet attack in history, with over 500,000 devices used to send up to 15.72 terabits per second to a single cloud endpoint in Australia, which is roughly equivalent to 3.5 million Netflix movies streamed simultaneously per-second.In a blog post, Microsoft claims the Azure DDoS protection was able to detect the attack and filter the traffic so customers remained…
Microsoft Azure Blocks Largest DDoS Attack in History — attack equivalent to streaming 3.5 million Netflix movies at once, 15.72 Terabits per Second from 500,000 IP addresses tied to IoT botnet
Microsoft's Azure cloud has mitigated the largest DDoS attack in history at close to 16 Tbps from the Aisuru botnet. At its peak, the attack used over 500,000 connected devices to hit the Azure servers with over 3.6 million packets per second to target a single cloud endpoint in Australia.
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