2025 Q4 DDoS Threat Report: a Record-setting 31.4 Tbps Attack Caps a Year of Massive DDoS Assaults

2025 Q4 DDoS Threat Report Summary:
DDoS attacks surged in 2025, with a record of 47.1 million total attacks, a 121% increase. The Aisuru-Kimwolf botnet led significant campaigns, including a peak attack of 31.4 Tbps. Network-layer attacks rose sharply, making up 78% of all incidents. Key targets included telecommunications and gaming industries, with Hong Kong and the UK experiencing notable attacker rises. Bangladesh became the largest source of DDoS attacks. Cloudflare effectively mitigated these threats through autonomous DDoS defense. Overall, organizations must reassess their security strategies to combat escalating DDoS risks.

https://blog.cloudflare.com/ddos-threat-report-2025-q4/