What are the 11 Amplification Vectors from a recent Multi-vector DDoS Attack?

A 19-day analysis of 126,875 DDoS attacks from May 1-20, 2026 using the A10 Defend Threat Control platform uncovered a single Netherlands-hosted subnet that absorbed 11 distinct amplification vectors simultaneously, often within minutes of each other. Multi-vector attacks combine UDP and TCP reflection vectors at once, multiplying traffic volume and saturating bandwidth far faster than single-vector attacks. The analysis breaks down all 11 amplification methods and explains what this unprecedented multi-vector targeting means for defenders everywhere.