https://blog.cloudflare.com/ddos-threat-report-for-2024-q4
Cloudflare has mitigated the largest DDoS attack ever recorded, peaking at a staggering 5.6 terabits per second (Tbps).1 This UDP-based attack, launched by a Mirai-based botnet of over 13,000 compromised devices, targeted an internet service provider (ISP) in Eastern Asia on October 29th, 2024.2
While the attack lasted only 80 seconds, it highlights the growing trend of hyper-volumetric DDoS attacks.3 These attacks, exceeding 1 Tbps, surged in the fourth quarter of 2024, with a quarter-over-quarter growth of 1,885%.4
Cloudflare observed a significant increase in short-lived attacks, with 72% of HTTP and 91% of network layer DDoS attacks lasting less than 10 minutes. This trend favors “blitz” attacks designed for maximum impact during peak usage periods.
Ransom DDoS attacks also saw a notable increase, peaking during the holiday season.5 Cloudflare emphasizes the need for automated DDoS protection services to effectively mitigate these rapid and powerful attacks.6
The most targeted sectors included telecommunications, service providers, internet services, and marketing/advertising. China, the Philippines, and Taiwan were the most frequently targeted regions.