On Monday 23 February 2026 at 01:45 UTC, a CLDAP reflection targeted a healthcare portal customer in Western Europe. The attack peaked at 136.5 Gbps and lasted 104 minutes. Traffic originated from 3745 autonomous systems in 66 countries, predominantly mobile carrier ranges.
| Vector | CLDAP reflection |
| Peak | 136.5 Gbps |
| Duration | 104 min |
| Time to mitigation | 0.851 s |
| Attack traffic reaching origin | 0.054% |
| Legitimate traffic challenged | 0.50% |
Timeline
The attack was preceded by no stated motive. Edge packet filters identified the flood by source port and payload signature and dropped it at line rate across 36 points of presence.
What the customer saw
Checkout conversion was unchanged compared with the same hour of the previous week.
Recommendations
- Add a dedicated rate limit for the targeted route.
- Enable authenticated origin pulls.
- Enable log streaming to your SIEM for faster correlation.