Japan Airlines said it was hit by a cyberattack Thursday, causing delays to more than 20 domestic flights but the carrier said it was able to stop the onslaught and restore its systems hours later. There was no impact on flight safety, it said.
JAL said the problem started Thursday morning when the company’s network connecting internal and external systems began malfunctioning.
The airline said it was able to identify the cause as an attack intended to overwhelm the network system with massive transmissions of data. Such attacks flood a system or network with traffic until the target cannot respond or crashes.
The attack did not involve a virus or cause any customer data leaks, JAL said. It said that as of late morning, the cyberattack had delayed 24 domestic flights for more than 30 minutes.
Experts have repeatedly raised concerns about the vulnerability of Japan’s cybersecurity, especially as the country steps up its defense capabilities and works more closely with the United States and other partners with much tighter cyber defenses. Japan has taken steps but experts say more work is needed.
In June, Japan’s space agency said it had suffered a series of cyberattacks since 2023, though sensitive information related to rockets, satellites and defense was not affected. It was investigating to take preventive measures. Last year, a cyberattack paralyzed operations at a container terminal at a port in the city of Nagoya for three days.
JAL’s ticket sales for both domestic and international fights scheduled for departure on Thursday were suspended temporarily but resumed several hours later.
Chief Cabinet Secretary Yoshimasa Hayashi told a regular news conference Thursday that the transport ministry told JAL to hasten efforts to restore the system and to accommodate affected passengers.
Other Japanese airlines, including ANA Holdings, Skymark and Starflyer, were not affected.
Television footage showed many passengers at Tokyo’s Haneda airport crowded into its terminals as the attack hit the year-end holiday travel season. Offices will close from this weekend for the New Year holidays, the biggest celebration of the year, when millions of people travel back to their hometowns from the cities.
—Mari Yamaguchi, Associated Press
Login to add comment
Other posts in this group

Last month, the online prediction market Kalshi filed some very dry but potentially very lucrative paperwork with t

Apple holds several events throughout the year, but none is as vital to the company’s bottom line as its annual one in September. That’s when Apple unveils its new iPhone lineup, drawing our atten

The first time I read The Count of Monte Cristo, I was astounded by how freakin’ cool it all was. Here’s a story about daring prison escapes, finding hidden treasure, and elaborately exec

Buying an abandoned golf course and restoring it from scratch sounds like a dream for many golf fans. For one man in Maine, that dream is now reality.
A user who posts under the handle @

I was reading funding news last week, and I came to a big realization: Andreessen Horowitz is not a venture capital fund.
A lot of people are thinking it. So there, I said it.

A post circulating on Facebook shows a man named Henek, a violinist allegedly forced to play in the concentration camp’s orchestra at Auschwitz. “His role: to play music as fellow prisoners

In the first half of 2025, she racked up over 55 million views on TikTok and 4 mil