マイあさ! 午前5時のNHKニュース 2026年10月25日
Major Typhoon No. 30 is tracking northward through the East China Sea and is expected to approach western Japan on October 26, bringing the risk of heavy rain across both eastern and western Japan through interaction with a stationary front. Meanwhile, GMO Internet Group has urgently requested government activation of active cyber defense after its investor-oriented cloud service suffered an unauthorized access attack, with the perpetrator threatening to continue manipulating customer accounts unless paid. Other news includes North Korean leader Kim Jong-un's visit to China's Liaoning Province, a University of Tokyo breakthrough in biodegradable plastics, and the opening game of Japan's professional baseball championship series.
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What this episode answers
What path is Typhoon No. 30 taking, and which regions face heavy rain?
As of 3:00 a.m. on October 25, Typhoon No. 30 was in the East China Sea moving north-northeast at 15 km/h, and is expected to approach western Japan on the 26th; by the 27th, heavy and very heavy rain with lightning is forecast across wide areas of western and eastern Japan as warm, moist air from the typhoon feeds into a front stalled near Honshu.
What are the details of the unauthorized access incident at GMO Internet Group and how is the company responding?
GMO Internet Group's investor-oriented cloud service 'Onamae.com Desktop Cloud' suffered unauthorized access, leaking customer data and enabling fraudulent trades on some accounts; the attacker has demanded money and threatened to continue unauthorized operations on accounts at more than 70 brokerages and FX firms unless paid, prompting the company to refuse the demands, urgently request government active cyber defense, and ask major exchanges to block access.
What meetings did Kim Jong-un hold in China and what are the political objectives behind his visit?
Kim Jong-un (金正恩) visited Liaoning Province in northeastern China on October 24 and held talks with a Politburo Standing Committee member (ranked fourth in the party hierarchy), expressing a desire to expand practical cooperation; analysts believe the visit aims to solidify ties with China ahead of next month's APEC summit and in anticipation of a possible resumption of US–North Korea talks.
What are the characteristics of the new plastic developed by the University of Tokyo, and what effects were confirmed?
Researchers at the University of Tokyo and collaborators developed a biodegradable plastic with degradation enzymes pre-mixed in; tests at a seabed depth of more than 750 meters off Misaki, Kanagawa Prefecture over five months showed nearly complete decomposition—more than 30 times faster than enzyme-free biodegradable plastic under the same conditions.
What was the result of Game 1 of the Japan Series and how did the key moments unfold?
SoftBank defeated DeNA 3–1 in 11 innings in Game 1 of the Japan Series at Yokohama Stadium; SoftBank scored first in the 7th inning on a groundout by Shoji Yudai (庄司雄大), DeNA tied it in the 8th on a solo home run by Maki Shūgo (牧秀悟), and Shoji delivered the decisive RBI double over the left fielder's head in the 11th to give SoftBank a 1–0 series lead.
Typhoon No. 30 Approaches Western Japan — Heavy Rain Warning for East and West
According to the Japan Meteorological Agency, large Typhoon No. 30 was located in the East China Sea at 3:00 a.m. on October 25, moving north-northeast at 15 km/h. Central pressure stood at 992 hectopascals, with maximum sustained winds near the center of 23 m/s and gusts up to 35 m/s. Although the typhoon has no zone of violent winds, winds of 15 m/s or stronger are affecting areas within 650 km to the east and 560 km to the west of the center.
The typhoon is expected to gradually turn eastward and approach western Japan on October 26. Because warm, moist air from the typhoon will feed into a stationary front near Honshu, heavy rain and very heavy rain accompanied by thunder is forecast across wide areas of western and eastern Japan through the 27th. Developed rain clouds are already covering northern Kyushu and the Chugoku region; 30 mm of rain fell in one hour before 4:00 a.m. on the 25th in Hirado City, Nagasaki Prefecture. A meteorological forecaster noted that the typhoon is expected to become an extratropical cyclone and merge with the front south of Shikoku by tomorrow night. Forecast 24-hour rainfall totals through tomorrow morning reach as high as 200 mm in northern Kyushu, 150 mm in Shikoku, and 120 mm in the Chugoku region. Authorities are urging the public to take full precautions against landslides, flooding in low-lying areas, and swollen rivers.
Unauthorized Access at GMO Internet Group — Company Urgently Requests Active Cyber Defense
GMO Internet Group disclosed on October 24 that its investor-oriented cloud service, Onamae.com Desktop Cloud — a server platform that supports automated trading in FX and other instruments — had been hit by unauthorized access, causing customer data to leak externally and resulting in confirmed unauthorized trades on some accounts.
The company says it has received contact from the apparent attacker demanding money, along with a threat to continue unauthorized operations on user accounts at more than 70 brokerages and FX firms if the demand is not met. GMO Internet Group has made clear it will not comply with the demand. Describing private-sector defense and post-incident response as insufficient on its own, the company has filed an emergency request with the government to invoke active cyber defense, and has also taken emergency measures by requesting that major exchanges block access. Users are being urgently advised to log out, change passwords, run antivirus scans on their devices, and back up their data. As reports of losses from affected users continue to mount, preventing further damage has become the most pressing issue.
Kim Jong-un Visits China's Liaoning Province, Reaffirms Closer Ties
According to the Chinese government, North Korean General Secretary Kim Jong-un visited Liaoning Province in northeastern China on October 24. It was Kim's first visit to China since September of last year; he was received by a member of the Politburo Standing Committee of the Chinese Communist Party, ranked fourth in the leadership hierarchy.
Kim visited a memorial hall introducing the history of China's entry into the Korean War, ahead of the 76th anniversary of that intervention. In talks, he expressed a desire to "inherit the historic friendship with China and expand practical cooperation," signaling enthusiasm for strengthening bilateral relations. China's side called for strengthened strategic communication and cooperation and the building of a peaceful and stable environment. Kim also inspected a local automobile factory, and senior officials escorted him to a newly opened bridge linking China and North Korea this month — occasions that highlighted economic cooperation between the two countries. Analysts suggest that, ahead of the APEC leaders' summit in China next month and in light of the possibility of a US–North Korea dialogue resuming, Kim's visit is aimed at consolidating coordination with Beijing.
University of Tokyo Develops New Plastic That Degrades 30 Times Faster in the Ocean
A research group led by the University of Tokyo has developed a new biodegradable plastic with degradation enzymes pre-mixed into the material. The plastic is broken down by microorganisms and is structured so that decomposition proceeds when its cross-section comes into contact with water.
In an experiment in which the material was placed on the seabed at a depth of more than 750 meters off Misaki, Kanagawa Prefecture for five months, nearly complete decomposition was confirmed. The material was also found to degrade more than 30 times faster than enzyme-free biodegradable plastic tested under the same conditions. Professor Iwata Tadahisa (岩田忠久) of the University of Tokyo Graduate School of Agricultural and Life Sciences commented: "Since enzymatic decomposition worked even in the harsh conditions of the deep seabed, we can expect applications not only in the ocean but also in mountains and rivers. I want to commercialize this and help address the problem of accumulating waste."
Japan Series Game 1: SoftBank Defeats DeNA in 11 Innings
Game 1 of the professional baseball Japan Series was played at DeNA's home ground, Yokohama Stadium. The matchup featured DeNA — which finished third in the Central League's regular season before going 6–0 through the Climax Series — against SoftBank, who won the Pacific League for the third consecutive year. DeNA started pitcher Ishida Yutaro (石田裕太郎) and SoftBank started Uezawa Naoyuki (上沢直之).
With both teams scoreless heading into the 7th inning, SoftBank loaded second and third with nobody out on consecutive hits, then scored the go-ahead run when a runner came home on a groundout by Shoji Yudai (庄司雄大). DeNA tied the game in the 8th on a solo home run by Maki Shūgo (牧秀悟), and had runners advance to third in both the 9th and 10th innings with walk-off opportunities, but could not deliver the key hit. In the 11th inning, with one out and runners on first and second, Shoji lined a go-ahead RBI double over the left fielder's head and SoftBank added another run. SoftBank won 3–1, taking a 1–0 lead in the series.
Takeaways
- Typhoon No. 30 is forecast to approach western Japan on October 26, and its interaction with a stationary front threatens heavy rain across wide areas of eastern and western Japan through the 27th — the latest weather information should be monitored closely.
- Unauthorized access to GMO Internet Group's investor cloud service has led to customer data leaks and fraudulent trades, and with the attacker continuing to issue threats, the company has urgently requested that the government activate active cyber defense.
- The University of Tokyo has developed a biodegradable plastic with pre-mixed enzymes that was shown to decompose more than 30 times faster than conventional biodegradable plastic, even on the deep ocean floor.
This article is edited from a machine transcript of the first 30 minutes of the episode. It is not an official summary — please listen to the episode itself.