| Nov 12, 2026 |
Moderate Japan Pushes Emergency Funding for Cybersecurity as AI-Assisted Breaches Rise
Detected
1 article |
Data breach |
Japan |
— |
| Nov 11, 2026 |
Moderate Cyberattacks hit a third of Japan firms or their service providers this year: Reuters poll
Detected
1 article |
Other |
Japan |
— |
| Nov 9, 2026 |
Elevated Unauthorized access to Nitori; possibility of up to 37.62 million pieces of personal information leaked
Detected
1 article |
Data breach |
Japan |
— |
| Nov 9, 2026 |
Elevated SEGA newsletter data breach exposes 2.2 million email addresses
Detected
1 article |
Data breach |
Japan |
— |
| Nov 9, 2026 |
Moderate Unauthorized access to 'RAKSUL'; risk of leakage of printing data and other information
Detected
1 article |
Data breach |
Japan |
— |
| Nov 8, 2026 |
Elevated Iris Ohyama data cloud breach exposes info of 7.7 million customers
Detected
1 article |
Data breach |
Japan |
— |
| Nov 6, 2026 |
Elevated Double Trouble: Japan Data Breaches Expose 260 Million Personal Info Records
Detected
1 article |
Data breach |
Japan |
— |
| Nov 5, 2026 |
Moderate Possibility of unauthorized access to Docomo; online services suspended
Detected
1 article |
Intrusion |
Japan |
— |
| Nov 4, 2026 |
Moderate Japan Post partially suspends overseas delivery service 'UGX' due to cyberattack
Detected
1 article |
Other |
Japan |
— |
| Nov 3, 2026 |
Elevated More data breaches hit Japan, including leak of 77 million email addresses
Detected
1 article |
Data breach |
Japan |
— |
| Nov 2, 2026 |
Elevated Nojima leaks approximately 7 million pieces of personal information due to unauthorized access
Detected
1 article |
Data breach |
Japan |
— |
| Nov 2, 2026 |
Elevated Potential leak of personal information for up to approximately 5.49 million 'NetMile' users
Detected
1 article |
Data breach |
Japan |
— |
| Nov 2, 2026 |
Moderate Suntory, other companies report personal data leaked
Detected
1 article |
Data breach |
Japan |
— |
| Nov 1, 2026 |
Moderate North Korean hackers behind Japan’s massive GMO data leak, investigation finds
Detected
10 articles |
Data breach |
Japan |
— |
| Oct 31, 2026 |
Elevated Foreign ministry says 3,600 sets of personal information may have been leaked
Detected
1 article |
Data breach |
Japan |
— |
| Oct 31, 2026 |
Elevated Club Tourism: Approximately 4.32 million pieces of personal information leaked due to unauthorized access
Detected
1 article |
Data breach |
Japan |
— |
| Oct 31, 2026 |
Moderate Unauthorized access to NTT Data contractor; possibility of corporate bond purchaser information leak
Detected
1 article |
Data breach |
Japan |
— |
| Oct 30, 2026 |
High Cathay Pacific says data from 53,000 bookings compromised in Amadeus cyberattack
Detected
EU medium
8 articles |
Data breach |
Japan, Singapore, Thailand, Malaysia +1 |
— |
| Oct 30, 2026 |
High Foreign Ministry hit by hacking, along with ANA, Muji brand operator
Detected
4 articles |
Data breach |
Japan |
— |
| Oct 29, 2026 |
Moderate Matsuya Foods detects unauthorized access, suspends website and app
Detected
1 article |
Intrusion |
Japan |
— |
| Oct 29, 2026 |
Moderate Asahi Shimbun: Unauthorized access to email distribution company may have leaked over 70,000 items
Detected
1 article |
Data breach |
Japan |
— |
| Oct 29, 2026 |
Moderate Life Card: Over 330,000 customer email addresses and other data potentially leaked
Detected
1 article |
Data breach |
Japan |
— |
| Oct 28, 2026 |
Elevated Unauthorized access to Japan Airlines reservation system, information of over 90,000 people may have been leaked
Detected
1 article |
Data breach |
Japan |
— |
| Oct 27, 2026 |
Moderate Okinawa Tourist announces leak of personal information of up to approximately 730,000 people
Detected
1 article |
Data breach |
Japan |
— |
| Oct 26, 2026 |
Elevated Government holds urgent cybersecurity meeting in response to recent data breaches
Detected
1 article |
Data breach |
Japan |
— |
| Oct 26, 2026 |
Elevated Email distribution company 'Yumirlink' confirms data leak of 51 million records
Detected
1 article |
Data breach |
Japan |
— |
| Oct 26, 2026 |
Elevated Unauthorized access to electronic gift company; 550 million yen worth issued fraudulently
Detected
1 article |
Intrusion |
Japan |
— |
| Oct 26, 2026 |
Moderate Japan companies to compensate customers after major cyberattacks
Detected
1 article |
Other |
Japan |
— |
| Oct 26, 2026 |
Moderate Japanese companies offer compensation as cyberattacks hit economy
Detected
1 article |
Other |
Japan |
— |
| Oct 26, 2026 |
Moderate Rakuten Travel suffers unauthorized access, leaking names and partial credit card numbers
Detected
2 articles |
Data breach |
Japan |
— |
| Oct 24, 2026 |
Elevated Park24 to pay ¥3,000 to Times Car users hit by data breach
Detected
3 articles |
Data breach |
Japan |
— |
| Oct 23, 2026 |
Elevated Digital Agency reports data breach via website vendor
Detected
1 article |
Data breach |
Japan |
— |
| Oct 23, 2026 |
Moderate [3rd Report] To our business partners and retirees, a request for caution regarding unauthorized access and potential information leakage from our group management server
Detected
1 article |
Data breach |
Japan |
— |
| Oct 22, 2026 |
Elevated Japanese cybersecurity breach spreads: Capcom reports nearly 12 million accounts leaked globally
Detected
1 article |
Data breach |
Japan |
— |
| Oct 22, 2026 |
Moderate Driver's license images and other data leaked and sold on the dark web? From an Okinawa company
Detected
1 article |
Data breach |
Japan |
— |
| Oct 21, 2026 |
High Unauthorized access: 'Possibility that the stage has shifted to targeting financial institutions'
Detected
EU medium
1 article |
Espionage campaign |
Japan |
— |
| Oct 21, 2026 |
Elevated Data breach potentially exposes information of 125,000 police officers and staff
Detected
1 article |
Data breach |
Japan |
— |
| Oct 21, 2026 |
Elevated AI-driven, large-scale nation-state campaign using ARTEX enables supply chain compromise
Detected
1 article |
Espionage campaign |
Japan |
Storm-0940 |
| Oct 21, 2026 |
Elevated More data breaches reported by prefectural police forces, companies
Detected
1 article |
Data breach |
Japan |
— |
| Oct 20, 2026 |
Elevated Furusato Choice announces leakage of 4.45 million pieces of personal information
Detected
1 article |
Data breach |
Japan |
— |
| Oct 20, 2026 |
Elevated Risk of information leakage for over 23,000 cases in national energy-saving housing project
Detected
1 article |
Data breach |
Japan |
— |
| Oct 20, 2026 |
Moderate Chinese AI tool used in cyberattacks on Japanese companies, investigation finds
Detected
1 article |
Other |
Japan |
— |
| Oct 19, 2026 |
Moderate JETRO, more Japanese firms report breaches to network systems
Detected
2 articles |
Data breach |
Japan |
— |
| Oct 19, 2026 |
Moderate Over 16% of Japanese companies experience data breaches
Detected
1 article |
Data breach |
Japan |
— |
| Oct 18, 2026 |
Moderate Karaoke hack shows cybercrime is routine
Detected
1 article |
Intrusion |
Japan |
— |
| Oct 18, 2026 |
Moderate Japan Football Association investigating unauthorized access to official app
Detected
1 article |
Intrusion |
Japan |
— |
| Oct 17, 2026 |
Moderate Cyberattacks continue to menace Japan as more firms disclose data breaches
Detected
1 article |
Data breach |
Japan |
— |
| Oct 16, 2026 |
High Yamato Transport confirms 5.31 mil customer records leaked
Detected
2 articles |
Data breach |
Japan |
— |
| Oct 16, 2026 |
Moderate Comic Seymour confirms unauthorized access; member information leaked
Detected
1 article |
Data breach |
Japan |
— |
| Oct 16, 2026 |
Moderate [Update 2] Report on Unauthorized Access to Group Managed Server and Potential Data Leak
Detected
2 articles |
Data breach |
Japan |
— |
| Oct 15, 2026 |
Elevated Unauthorized access to system for obstetrics and gynecology clinics, medical institutions forced to respond
Detected
1 article |
Intrusion |
Japan |
— |
| Oct 15, 2026 |
Elevated Sourcenext: Approximately 22.51 million customer records may have been leaked
Detected
2 articles |
Data breach |
Japan |
— |
| Oct 14, 2026 |
Elevated Unstoppable personal information leaks, possibility of police involvement revealed
Detected
1 article |
Data breach |
Japan |
— |
| Oct 14, 2026 |
Moderate Customer data breach suspected at sushi delivery operator
Detected
1 article |
Data breach |
Japan |
— |
| Oct 14, 2026 |
Moderate What happens to your information after a data breach
Detected
1 article |
Data breach |
Japan |
— |
| Oct 13, 2026 |
Elevated Local government disaster prevention email distribution; addresses and other info leaked due to unauthorized access
Detected
1 article |
Data breach |
Japan |
— |
| Oct 13, 2026 |
Elevated Japan's information service firm serving municipalities reports data leak
Detected
1 article |
Data breach |
Japan |
— |
| Oct 13, 2026 |
Moderate Series of unauthorized access incidents analyzed as 'possibility of AI agent abuse'
Detected
1 article |
Intrusion |
Japan |
— |
| Oct 11, 2026 |
Moderate Driver’s license data breaches becoming major concern
Detected
1 article |
Data breach |
Japan |
— |
| Oct 10, 2026 |
Moderate More Japanese firms hit by large-scale data breaches
Detected
1 article |
Data breach |
Japan |
— |