Norway warns of critical vulnerability in national timekeeping infrastructure

Harald Hauglin, the chief of Justervesenet, warned that Norway's critical services are exposed by a "obvious vulnerability" in the way precise time is maintained. Many essential systems—bank transactions, grid measurements, GPS navigation and emergency communications—rely on nanosecond-level accuracy supplied by satellite signals, which are neither encrypted nor protected. Disruptions or deliberate manipulation of these signals could halt multiple services, as seen when a maintenance error at Australia's Telstra led to widespread timing faults and network failures.

A similar outage in Norway's mobile network earlier this month caused missed emergency calls and a two-hour halt to train traffic. Hauglin proposes a national, ground-based time service using a larger, geographically dispersed array of clocks to make Norway's timekeeping more resilient. He noted ongoing planning and collaboration with international partners that contribute to the UTC standard.