The DDoS Arms Race: How 2025 Became the Year of Record-Breaking Cyber Assaults
Executive Summary In September 2025, Cloudflare mitigated an 11.5 terabits per second (Tbps) distributed denial-of-service (DDoS) attack—a record that stood for just three weeks before being shattered by a 22.2 Tbps assault. These unprecedented attacks represent the culmination of a multi-year escalation that has seen volumetric DDoS