On Sunday 29 March 2026 at 03:04 UTC, a HTTP GET flood targeted a online casino customer in the Middle East. The attack peaked at 564.1 million requests per second and lasted 36 minutes. Traffic originated from 2132 autonomous systems in 68 countries, predominantly misconfigured open reflectors.
| Vector | HTTP GET flood |
| Peak | 564.1 million requests per second |
| Duration | 36 min |
| Time to mitigation | 0.944 s |
| Attack traffic reaching origin | 0.026% |
| Legitimate traffic challenged | 0.25% |
Timeline
The attack was preceded by an extortion email received two days earlier. Request rates on the targeted routes exceeded their hourly baseline by a factor of 631 within 21 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
Checkout conversion was unchanged compared with the same hour of the previous week.
Recommendations
- Enable log streaming to your SIEM for faster correlation.
- Review allow-listed partner ranges quarterly.
- Keep origin IPs out of public DNS history.