North Korea experienced a brief, partial connectivity disruption in the early hours of August 18, 2026. The event began at 00:40 UTC and lasted approximately 30 minutes, concluding by 01:10 UTC. The disruption primarily affected the network’s control plane visibility.
Technical Details
The event registered a severity score of 136. The primary affected metric was the Border Gateway Protocol (BGP) signal, which measures the control plane visibility of a country’s internet prefixes. The BGP median value dropped by approximately 5% from its peak during the observation period. Concurrently, a secondary metric measuring ICMP reachability across IPv4 address blocks also showed a 50% reduction from its peak, though from a very low baseline.
The cause has not been publicly attributed.
Connectivity was reported restored following the half-hour disruption.
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