Cloudflare’s latest DDoS Threat Report for Q4 2024 highlights a dramatic surge in Distributed Denial of Service (DDoS) attacks, including a record-breaking 5.6 Tbps assault.

The web security and infrastructure company’s report reveals a 53 per cent year-over-year rise in DDoS activity, with Cloudflare blocking 21.3 million attacks in 2024, 6.9 million of which occurred in Q4, a staggering 83 per cent increase from the same period in 2023!

The largest attack, a 5.6 Tbps assault by a Mirai-variant botnet of over 13,000 IoT devices, targeted an ISP in Eastern Asia. Cloudflare says it mitigated it autonomously within seconds, preventing any disruption. Hyper-volumetric attacks exceeding 1 Tbps grew by 1,885 per cent quarter-over-quarter, reflecting the increasing scale and intensity of these threats. Nearly half of all attacks targeted OSI Layers 3 and 4, with the remainder focused on HTTP-based attacks, predominantly launched by botnets exploiting IoT devices.

Cloudflare’s report also highlighted how emerging attack methods like Memcached and BitTorrent DDoS vectors have seen dramatic growth, and ransom-motivated attacks surged by 78 per cent compared to Q3. The report also identifies telecommunications and marketing as the most attacked industries, with China, the Philippines, and Taiwan being key hotspots. Cloudflare says those responsible for the attacks include competitors, state-sponsored groups, and disgruntled users, highlighting diverse motives behind these incidents.

To counter these growing threats, businesses should deploy always-on, automated DDoS protection, secure all connected devices, and adopt proactive defence strategies. With attacks becoming faster and more sophisticated, real-time mitigation and robust security are critical to minimising risk.