DDoS Attack هجوم حجب الخدمة الموزّع (DDoS)
Distributed Denial of Service — flooding a target with traffic from thousands of hijacked machines until legitimate users cannot get through. Attacks range from raw volumetric floods (measured in Tbps) to subtle application-layer exhaustion. Mitigation means scrubbing traffic at the network edge before it reaches your server — capacity you rent, not build.