Cloudflare Telemetry Exposes Yandex AS13238 Bot Traffic Crash Post-Data Center Attack
Network telemetry reveals an immediate and sharp decline in automated traffic from Yandex’s AS13238 following a reported physical attack on its infrastructure.
Key points
- Cloudflare telemetry indicates a sudden drop in bot traffic originating from Yandex’s autonomous system.
- The traffic collapse coincides with reports of a strike on a Yandex data center.
- The incident highlights the operational fragility of large-scale internet infrastructure during physical conflicts.
Cloudflare network data reveals a distinct and immediate reduction in automated bot traffic originating from Yandex’s autonomous system. This sudden decline follows reported physical strikes on Yandex data center infrastructure, providing real-time evidence of the impact on digital operations.
What happened
Cloudflare published telemetry data showing a sharp decrease in bot traffic associated with autonomous system 13238, which is operated by Yandex. According to a report featured on the Hacker News front page, this traffic drop occurred immediately after a strike on a Yandex data center. The data covers a seven-day range and illustrates the direct correlation between physical infrastructure damage and network activity levels.
Why it matters
The incident demonstrates how physical attacks on data centers can instantly disrupt digital services and network traffic patterns. For CISOs and IT managers, this event underscores the vulnerability of internet infrastructure to geopolitical conflicts and physical destruction. The immediate collapse of bot traffic suggests that significant portions of automated activity may rely on specific, vulnerable physical nodes.
Next steps
- Monitor network telemetry for sudden drops or spikes in traffic from specific autonomous systems.
- Review business continuity plans to account for physical infrastructure failures in key regions.
- Assess dependencies on services hosted in regions prone to physical conflict or instability.
- Update incident response procedures to include scenarios involving physical data center damage.
What to do and how to stay safe: Cloudflare
- Review current network monitoring dashboards to establish baseline traffic patterns for key autonomous systems.
- Identify critical services that rely on infrastructure located in geographically sensitive regions.
- Develop contingency plans for sudden service disruptions caused by physical infrastructure damage.
- Ensure incident response teams are prepared to investigate anomalous traffic drops as potential physical security events.
Step-by-step guide: Wifi router security: Stop hidden admin access from leaking data
General security guidance from the Packet Tribune newsroom. It is not confirmed advice from the organisations named in this story.
Frequently asked questions
What caused the drop in Cloudflare bot traffic?
The drop in bot traffic was caused by a strike on a Yandex data center, which disrupted network operations for autonomous system 13238.
Which autonomous system was affected?
Autonomous system 13238, operated by Yandex, experienced the immediate collapse in bot traffic following the physical strike.
Where can the data be viewed?
The telemetry data is available on Cloudflare’s radar platform, showing a seven-day range of traffic activity for the affected autonomous system.
