Cyberattack Disrupts Japan Airlines Operations, Delays Over 40 Flights

**Executive summary:** Japan Airlines experienced a cyber incident on 26 December 2024 when network equipment connecting internal and external systems malfunctioned, prompting JAL to shut down the affected router; the disruption caused operational impacts including over 40 delayed flights and temporary suspension of same‑day bookings and its mobile app, but JAL reported no evidence of data leakage or malware and restored services the same day while investigating the cause.