Attackers overwhelm application resources through volumetric traffic floods, resource exhaustion, or application-layer abuse, rendering the service unavailable to legitimate users.
Immediate Response
1Enable upstream DDoS mitigation or activate a CDN-based scrubbing service immediately.
2Apply rate limiting and connection throttling on load balancers and reverse proxies.
3Block or null-route traffic from identified attack source IP ranges.
4Scale infrastructure horizontally to absorb the attack volume while mitigation takes effect.