Microsoft services fended off the most powerful DDoS attack in history with a peak traffic of 3.47 terabytes per second. This was stated on the company’s website.
Azure DDoS Protection exposed incident data during the publication of the report for the third and fourth quarters of the year. According to experts, in November 2021, the company’s services suffered an attack with a peak traffic of 3.47 terabytes per second. In this case, the programs launched by unknowns ensured the delivery of about 340 million packets per second.
According to Microsoft, the attack targeted an Azure client in Asia. It came from about 10,000 sources around the world, including the United States, China, South Korea, Russia, Thailand, India, Vietnam, Iran, Indonesia, and Taiwan. “We believe this is the largest known attack ever,” said Azure DDoS Protection.
Also in the second half of the year, the company’s services repelled DDoS attacks, with a peak level of 3.25 and 2.5 terabytes per second of incoming traffic. Both attacks also targeted an Asian client of the company and lasted about 15 minutes.
Azure analysts summarized that in the third and fourth quarters of the year, compared to the first half, the number of attacks on customers increased by 40 percent. On that day, Microsoft services reflected on the 1955 attacks.
Microsoft recorded the previous largest DDoS attack in history in August 2021. In total, the attack lasted about ten minutes, and traffic peaked at 2.4 Tbps.