Japan Airlines (JAL) said its systems were up and running again after a cyberattack caused delays to domestic and international flights.
“We have identified the cause and scope of the malfunction, and the system has been restored,” said the airline, Japan’s second biggest after All Nippon Airways.
The “large data attack” did not leak any customer information and safety was unaffected, Japan Airlines said in a post on social media platform X.
Japanese media said it may have been a so-called DDoS attack aimed at overwhelming and disrupting a website or server.
Ticket sales for domestic and international flights departing yesterday were suspended during the incident but have now resumed, JAL said.
Although the cyberattack did not cause major disruption, the airline earlier said that 24 domestic flights had been delayed by more than half an hour.
Problems with the carrier’s baggage check-in system caused delays at several Japanese airports, local media said.
JAL shares fell as much as 2.5% in morning trade after the news emerged, before recovering.
Its stocks were down 0.2% in the afternoon.
JAL is just the latest Japanese firm to be hit by a cyberattack.
The country’s space agency JAXA was targeted in 2023, although no sensitive information about rockets or satellites was accessed.
The same year one of Japan’s busiest ports was hit by a ransomware attack blamed on the Russia-based Lockbit group.
In 2022, a cyberattack at a Toyota supplier forced the top-selling automaker to halt operations at domestic plants.
And more recently, the popular Japanese video-sharing website Niconico came under a large cyberattack in June. — AFP