Thousands of flights were delayed or canceled after a primary line failed and a backup fiber-optic cable was severed Airport operations across the US north-east resumed Monday evening after a communications line failure snarled flights at some of the country’s busiest airports, leading to thousan...

Source: [Guardian World](https://www.theguardian.com/us-news/2026/sep/21/airports-flight-ground-stop-hacking-threat)

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