UK military aircraft fed false data to flight system, causing 2,000+ cancellations

The striking detail is the source: a military aircraft, not a civilian operator or a software fault, injected the false data that took down the national system. That shifts the incident from a technical-resilience story into a civil-military coordination problem, since military traffic normally shares airspace with civilian networks under separate arrangements. The affected parties extend well beyond the UK, given how many long-haul routes transit its airspace. The open questions are how a single aircraft's data reached the core system unchecked, and whether the four-hour shutdown reflects a design that lacks filtering between military and civil feeds.