What To Do When You’re Under a DDoS Attack

This Red Button blog post provides practical guidance for confirming, containing, and remediating DDoS attacks: activate incident response, identify attack vectors (L3/L4/L7), ensure traffic is routed through scrubbing/CDN, sweep for unprotected assets, document actions in real time, and run a structured post-mortem within 72 hours. It highlights common failure modes (misconfigurations, unprotected segments, permissive WAF rules, manual diversion), emphasizes validating mitigation coverage and routing, and recommends simulation testing and operational readiness (runbooks, DNS protection, automatic diversion) to prevent repeat outages.