On Thursday 15 January 2026 at 07:31 UTC, a HTTP POST flood targeted a retail banking customer in North America. The attack peaked at 375.1 million requests per second and lasted 66 minutes. Traffic originated from 328 autonomous systems in 25 countries, predominantly a rented booter service.
| Vector | HTTP POST flood |
| Peak | 375.1 million requests per second |
| Duration | 66 min |
| Time to mitigation | 0.943 s |
| Attack traffic reaching origin | 0.051% |
| Legitimate traffic challenged | 0.45% |
Timeline
The attack was preceded by no stated motive. Request rates on the targeted routes exceeded their hourly baseline by a factor of 474 within 24 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
The customer’s status page stayed green throughout; they learned about the attack from our notification.
Recommendations
- Review allow-listed partner ranges quarterly.
- Enable authenticated origin pulls.
- Enable log streaming to your SIEM for faster correlation.