SYDNEY / LONDON (IT BOLTWISE) – Microsoft’s Azure recently became the target of the largest DDoS attack ever seen in the cloud. The attack originating from the Aisuru botnet reached a peak load of 15.72 terabits per second and was successfully blocked by Microsoft’s protection systems.
Today’s daily deals at Amazon! ˗ˋˏ$ˎˊ˗
Microsoft’s Azure cloud service has been hit by a massive DDoS attack, believed to be the largest of its kind in the cloud. The attack launched by the Aisuru botnet reached an impressive rate of 15.72 terabits per second and 3.64 billion packets per second. Thanks to the automatic detection and mitigation mechanisms of Microsoft’s DDoS protection service, the impact on customers was minimized and services were not interrupted.
The attack targeted a single endpoint in Australia and used over 500,000 source IP addresses to send a flood of UDP packets. The Aisuru botnet, based on the Mirai architecture, has already carried out several record-breaking attacks since it emerged in August 2024. A notable attack in June 2025 hit KrebsOnSecurity at 6.3 Tbps, which was the largest attack fended off by Google at the time.
The botnet primarily infects home routers and cameras on private networks and operates as a DDoS-for-hire service. Despite reports that the botnet’s operators have taken measures to avoid attacks on government and security-related facilities, it remains a criminal operation and statements should be treated with caution.
The increasing frequency and intensity of such attacks reflects the scaling of attackers as the Internet grows. According to a recent report from Cloudflare, the number of DDoS attacks increased by more than 40 percent in the second quarter of 2025 compared to the previous year. This development highlights the need for more robust security measures in cloud infrastructure.
Order an Amazon credit card without an annual fee with a credit limit of 2,000 euros!
Bestseller No. 1 ᵃ⤻ᶻ “KI Gadgets”
Bestseller No. 2 ᵃ⤻ᶻ “KI Gadgets”
Bestseller No. 3 ᵃ⤻ᶻ “KI Gadgets”
Bestseller No. 4 ᵃ⤻ᶻ “KI Gadgets”
Bestseller No. 5 ᵃ⤻ᶻ “KI Gadgets”
Please send any additions and information to the editorial team by email to de-info[at]it-boltwise.de. Since we cannot rule out AI hallucinations, which rarely occur with AI-generated news and content, we ask you to contact us via email and inform us in the event of false statements or misinformation. Please don’t forget to include the article headline in the email: “Largest DDoS attack on Azure: 3.64 billion packets per second”.