On Tuesday 30 July 2024 at 07:17 UTC, a login endpoint flood targeted a online casino customer in Latin America. The attack peaked at 154.8 million requests per second and lasted 138 minutes. Traffic originated from 1701 autonomous systems in 105 countries, predominantly a headless-browser farm.
| Vector | login endpoint flood |
| Peak | 154.8 million requests per second |
| Duration | 138 min |
| Time to mitigation | 0.715 s |
| Attack traffic reaching origin | 0.006% |
| Legitimate traffic challenged | 0.36% |
Timeline
The attack was preceded by a hacktivist channel announcing the target. Request rates on the targeted routes exceeded their hourly baseline by a factor of 770 within 11 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
No customer-visible impact. The on-call engineer was notified and acknowledged the incident from the dashboard.
Recommendations
- Keep origin IPs out of public DNS history.
- Lower challenge thresholds on authentication endpoints during high-risk events.
- Review allow-listed partner ranges quarterly.