Japan Airlines announced on Dec. 26 that its computer network was hit by a cyberattack, which delayed some flights while the company worked to restore the system and resume normal operations.
According to JAL, the cyberattack caused a heavy access load to the network equipment connecting internal and external offices from 7:24 a.m. that morning. The heavy traffic rendered the automatic baggage check-in system and other systems unusable. As of noon on the same day, 75 domestic flights were delayed for 30 minutes or more. As of 10:20 a.m., sales of tickets for both domestic and international flights departing on the same day were suspended.
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Source: The Asahi Shimbun
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