DDoS Attacks on the Environmental Services Industry Surge by 61,839% in 2023

Cloudflare's Q4 2023 DDoS threat report observed an unprecedented surge in HTTP-based DDoS attacks—including a 61,839% year-over-year increase against environmental services during COP28—while cryptocurrency remained the top target with over 330 billion requests; attacks grew more frequent, longer, and multi-vector, were largely sourced from the U.S. and China, and showed notable spikes against Palestinian and Taiwanese sites amid geopolitical events, alongside warnings about unsecured API endpoints and prevalent 429 error anomalies.