#Japan
All CosmicBytez Labs articles tagged #Japan, across news, security advisories, how-to guides, and projects.
- News
Japan's GMO Offers $1 Million Bounty to Catch Onamae.com Cloud Hackers
GMO Internet Group is offering up to $1 million for tips leading to the attackers behind the Onamae.com Desktop Cloud breach, after refusing an extortion demand.
- News
Japan Airlines Warns of Breach at Reservation Provider Amadeus Affecting 92,000 Customers
Hackers accessed JAL reservation data held by Amadeus; about 2,000 customers also lost passport numbers, frequent flyer numbers, emails and phone numbers.
- News
Japan's GMO Urges Customers to Shut Down PCs Amid Ransomware Threat
GMO Internet told Onamae Desktop Cloud customers to power off systems after an intruder stole data, demanded ¥8 billion and threatened a ransomware payload.
- News
Nikkei Discloses Third Data Breach in a Month, 1.83 Million Records Exposed
Nikkei disclosed a third breach in a month, after stolen credentials exposed 1.83 million records from a cloud-hosted development system.
- News
Malware at Japanese Karaoke Giant's Data Contractor Exposes 8.6 Million Customer Records
Malware on a Nippon Columbia employee PC exposed data on 8.6 million Daiichi Kosho karaoke customers and 93,000 employees.
- News
Japan Sees Sharp Rise in Web Data Leaks Amid Mobile API Abuse and Metabase Attacks
JPCERT/CC says Japan logged 119 web data-leak incidents in 2026, driven by mobile API abuse and an unauthenticated Metabase SQLi flaw (CVE-2026-72898).
- News
Ransomware Attack Disrupts Japan's IDCF Cloud Used by Government Clients
A ransomware attack on SoftBank-owned IDC Frontier's IDCF Cloud knocked out Japan's East Japan Region 1, disrupting 495 companies and government clients.
- News
Osaka Metropolitan University Cancels Classes After Suspected Ransomware Attack
A suspected ransomware attack took down ~500 servers at Osaka Metropolitan University, exposing data on 130,000+ students and staff.
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Japan's Keio Confirms Ransomware Attack Disrupted Business Systems
Keio Group confirmed a ransomware attack hit servers on September 26, disrupting hotel, retail, and bus payment systems; trains stayed unaffected.
- News
Times Car Confirms Data Breach Affecting 6.6 Million User Accounts
Japanese car-sharing giant Times Car confirmed 6.6M accounts breached, exposing driver's license images, DOBs, and hashed passwords.
- News
240,000 Hit by Data Breach at Japan's Digital Agency
Hackers exploited a disclosed VPN vulnerability and a maintenance account to breach Japan's Digital Agency, exposing data on 240,000 people.
- News
Japan's Digital Agency Says VPN Flaw Exposed 246,000 Personnel Records
Japan's Digital Agency says an attacker exploited a VPN flaw to access Government Solution Service files, exposing about 246,000 personnel records.
- News
Ransomware Attack Puts a Chill on Japanese Frozen-Food Chain
A ransomware attack on a major Japanese food and logistics firm has disrupted frozen food supply chains, affecting thousands of franchise clients...
- News
RansomHouse Freezes Japan's Food Supply: Nichirei Logistics Cyberattack Disrupts KFC and Thousands of Clients
A cyberattack by Russia-linked RansomHouse on Nichirei Logistics Group, Japan's largest cold-chain operator, halted frozen food shipments across 140...
- News
Telco Giant KDDI Says Data Breach Affects Over 12 Million People
Japanese telecommunications giant KDDI confirmed attackers breached a shared email platform used by six ISPs, exposing 12.2 million email addresses and...
- News
Major Japanese Telco Cyberattack Exposes 12 Million Email Accounts
A cyberattack on a major Japanese telecommunications provider compromised an email management system affecting five ISPs, exposing the accounts, webmail...
- News
Insurance Giant Aflac Discloses Data Breach After Subsidiary Hack
American insurance giant Aflac has disclosed a data breach impacting 4.38 million customers after attackers compromised its Japan subsidiary, stealing...
- News
Data Breach Exposes Up to 14.2 Million Email Logins at Six ISPs
Japanese telecom giant KDDI Corporation disclosed a data breach affecting up to 14.22 million email accounts across six ISPs — including Nifty, Biglobe,...
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Japanese Energy Firm Loses Drive with Data of 10.9 Million Clients
Kyushu Electric Power Co., Inc. has disclosed a physical security incident exposing private data of more than 10 million customers after a hard drive...
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Hackers Exploited KnowledgeDeliver Zero-Day for Web Shell
A hardcoded machineKey value in KnowledgeDeliver's configuration enabled ViewState deserialization attacks leading to remote code execution and web shell.
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KnowledgeDeliver LMS Flaw Exploited to Deploy Godzilla and Cobalt Strike
A now-patched high-severity zero-day vulnerability in Digital Knowledge's KnowledgeDeliver LMS, a popular learning management system in Japan, was actively.
- News
Mazda Discloses Security Breach Exposing Employee and Partner Data
Mazda Motor Corporation has disclosed a security incident detected in December 2025 in which unauthorized access to a warehouse management system exposed...
- News
Japanese Semiconductor Giant Advantest Hit by Ransomware
Advantest Corporation, the world's leading manufacturer of semiconductor test equipment supplying companies like TSMC, Intel, and Samsung, disclosed a...