2025 Q4 DDoS threat report: A record-setting 31.4 Tbps attack caps a year of massive DDoS assaults

Cloudflare's 24th Quarterly DDoS Threat Report (Q4 2025) describes a dramatic rise in DDoS activity during 2025 — over 47 million attacks — emphasizing a hyper‑volumetric campaign by the Aisuru-Kimwolf botnet that leveraged millions of infected Android TVs to produce record-setting HTTP and network-layer floods (up to 205 Mrps and 31.4 Tbps); the report details industry and geographic targets, attack source ASNs, mitigation statistics, and defensive recommendations for service providers.