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Microsoft thwarts record‑breaking DDoS attack


Microsoft has revealed that it thwarted a Distributed Denial-of-Service (DDoS) attack that clocked in at a whopping 2.4 terabytes per second (Tbps). The onslaught, which targeted an Azure customer in Europe, surpasses the previous record holder – a 2.3 Tbps attack that was mitigated by Amazon Web Services (AWS) last year. It also dwarfs the previously largest DDoS attack (1 Tbps) on Azure from 2020.

According to Microsoft, the latest attack originated from some 70,000 sources and from several countries in the Asia-Pacific region, including Malaysia, Vietnam, Taiwan Japan, and China, as well as from the United States.

“The attack vector was a UDP reflection spanning more than 10 minutes with very short-lived bursts, each ramping up in seconds to terabit volumes. In total, we monitored three main peaks, the first at 2.4 Tbps, the second at 0.55 Tbps, and the third at 1.7 Tbps ...


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