DDoS threat report for 2023 Q1

In Q1 2023, China became the top source country for DDoS attacks, while Russia remained in second place. The United States was the third most common source of such attacks. Meanwhile, Hong Kong replaced China as the number one target country, with the United States and France taking the second and third spots, respectively. The majority of DDoS attacks observed during this period were volumetric, which involve overwhelming a victim's network or server by saturating it with traffic. These types of attacks accounted for 57% of all incidents in Q1 2023. Additionally, application-layer attacks also continued to pose significant risks to businesses worldwide. In terms of attack vectors, DNS amplification/reflection attacks remained the most prevalent, followed by UDP-based and TCP-based attacks. Emerging threats such as SPSS-based DDoS attacks, GRE-based attacks, and DNS