On Thursday 10 September 2026 at 05:42 UTC, a GRE flood targeted a gaming community customer in Southeast Asia. The attack peaked at 17.6 Gbps and lasted 47 minutes. Traffic originated from 3587 autonomous systems in 93 countries, predominantly residential proxy networks.
| Vector | GRE flood |
| Peak | 17.6 Gbps |
| Duration | 47 min |
| Time to mitigation | 0.910 s |
| Attack traffic reaching origin | 0.051% |
| Legitimate traffic challenged | 0.42% |
Timeline
The attack was preceded by a competitor’s product launch. Edge packet filters identified the flood by source port and payload signature and dropped it at line rate across 29 points of presence.
What the customer saw
A brief increase in p99 latency of 199 ms during the first minute, then normal service.
Recommendations
- Add a dedicated rate limit for the targeted route.
- Lower challenge thresholds on authentication endpoints during high-risk events.
- Enable log streaming to your SIEM for faster correlation.