On Tuesday 8 July 2025 at 06:55 UTC, a HTTP GET flood targeted a online casino customer in Western Europe. The attack peaked at 168.6 million requests per second and lasted 127 minutes. Traffic originated from 2083 autonomous systems in 34 countries, predominantly residential proxy networks.
| Vector | HTTP GET flood |
| Peak | 168.6 million requests per second |
| Duration | 127 min |
| Time to mitigation | 0.940 s |
| Attack traffic reaching origin | 0.061% |
| Legitimate traffic challenged | 0.06% |
Timeline
The attack was preceded by a publicly announced sales event. Request rates on the targeted routes exceeded their hourly baseline by a factor of 62 within 38 seconds. The risk score of participating clients crossed the challenge threshold automatically and proof-of-work difficulty rose with origin load.
What the customer saw
A brief increase in p99 latency of 93 ms during the first minute, then normal service.
Recommendations
- Enable authenticated origin pulls.
- Lower challenge thresholds on authentication endpoints during high-risk events.
- Enable log streaming to your SIEM for faster correlation.