Cloudflareが2023年第2四半期のDDoS攻撃の動向レポートを公開。今回 同社が対応した大規模DDoS攻撃の1つはMirai亜種ボットネットによるACKフラッドで攻撃規模は1.4Tbpsだった。

DDoS threat report for 2023 Q2

Welcome to the second DDoS threat report of 2023. DDoS attacks, or distributed denial-of-service attacks, are a type of cyber attack that aims to disrupt websites (and other types of Internet properties) to make them unavailable for legitimate users by overwhelming them with more traffic than they can handle — similar to a driver stuck in a traffic jam on the way to the grocery store.

We see a lot of DDoS attacks of all types and sizes and our network is one of the largest in the world spanning more than 300 cities in over 100 countries. Through this network we serve over 63 million HTTP requests per second at peak and over 2 billion DNS queries every day. This colossal amount of data gives us a unique vantage point to provide the community access to insightful DDoS trends.

For our regular readers, you might notice a change in the layout of this report. We used to follow a set pattern to share our insights and trends about DDoS attacks. But with the landscape of DDoS threats changing as DDoS attacks have become more powerful and sophisticated, we felt it’s time for a change in how we present our findings. So, we’ll kick things off with a quick global overview, and then dig into the major shifts we’re seeing in the world of DDoS attacks.

DDoS threat report for 2023 Q2
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