Cloudflare records largest DDoS attack at 7.3 Tbps in Q2 2025

Cloudflare records largest DDoS attack at 7.3 Tbps in Q2 2025 Cloudflare's latest DDoS Threat Report for Q2 2025 highlights a year-on-year increase in both the scale and complexity of distributed denial-of-service (DDoS) attacks against online infrastructure. The report documents a significant rise in the severity of attacks despite a quarter-on-quarter decline in overall volumes. During the quarter, Cloudflare automatically blocked the largest DDoS attack ever recorded, which peaked at 7.3 terabits per second (Tbps) and 4.8 billion packets per second (Bpps). Over 6,500 hyper-volumetric attacks were mitigated between April and June, averaging 71 per day. Year-on-year, total DDoS activity was up 44%, and HTTP-based attacks saw a 129% rise compared to Q2 2024. Although the volume of attacks lessened since the unprecedented surge in early 2025, cybercriminals employed larger and more frequent hyper-volumetric assaults. Notably, June accounted for nearly 38% of all observed DDoS activity i...