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United Airlines

United Airlines Outage Exposes Critical Vulnerabilities in Aviation Technology

On August 6, 2025, United Airlines faced a major system outage that triggered a nationwide ground stop, halting mainline flights at key hubs including Chicago O’Hare (ORD), Newark Liberty (EWR), Houston George Bush Intercontinental (IAH), Denver (DEN), and San Francisco (SFO). The failure in United’s Unimatic system, which manages critical weight and balance calculations, disrupted […]