On Sunday 23 November 2025 at 09:16 UTC, a carpet-bombing UDP flood targeted a sports betting customer in North America. The attack peaked at 131.7 Gbps and lasted 79 minutes. Traffic originated from 2737 autonomous systems in 35 countries, predominantly misconfigured open reflectors.
| Vector | carpet-bombing UDP flood |
| Peak | 131.7 Gbps |
| Duration | 79 min |
| Time to mitigation | 0.657 s |
| Attack traffic reaching origin | 0.031% |
| Legitimate traffic challenged | 0.26% |
Timeline
The attack was preceded by a ransom note demanding payment in Monero. Edge packet filters identified the flood by source port and payload signature and dropped it at line rate across 21 points of presence.
What the customer saw
Checkout conversion was unchanged compared with the same hour of the previous week.
Recommendations
- Enable authenticated origin pulls.
- Enable log streaming to your SIEM for faster correlation.
- Add a dedicated rate limit for the targeted route.
Thanks — sharing this with our on-call team.
Carpet bombing is nasty. Good to see a clear explanation of it.
Could you share the dataset behind the percentages?
Machine-readable ranges are at /ips.json and via the API.