







TOKYO -- Japanese companies and local governments have recently disclosed a series of personal data leaks. A white-hat hacker who monitors malicious c
Unauthorized access, personal data leaks surge in Japan | NHK WORLD-JAPAN News
A series of cyberattacks have led to leaks of large amounts of personal data from companies across Japan. Experts say the misuse of AI may be contributing to the growing threat. As this new challenge emerges, how should companies, and society as a whole, respond?
3 hacking methods primarily used in Japan data leaks | NHK WORLD-JAPAN News
A Japanese cybersecurity organization says that hackers have primarily used three methods in a recent spate of attacks that resulted in personal data leaks.
Japan data leaks: Which poses greatest risk, licenses, credit cards or My Number cards?
TOKYO -- Leaks of personal information held by companies and other organizations have surged due to unauthorized access. The compromised data ranges f

Millions of users exposed as Japan data breaches continue to surge | The Asahi Shimbun Asia & Japan Watch
H2O Retailing Corp. is the latest major company among the many in Japan that are disclosing massive data breaches almost daily, which are exposing millions of customer records and revealing weaknesses in corporate cybersecurity.

Japan Cabinet OKs easing data protection law to promote AI development
TOKYO (Kyodo) -- Japan's Cabinet on Tuesday approved a bill to revise the personal data protection law, easing restrictions on using individual inform

Government to ease data consent rules for AI development | The Asahi Shimbun Asia & Japan Watch
To accelerate artificial intelligence development, the government plans to relax consent requirements for access to personal information while introducing tougher penalties for intentional misuse.

Japan relaxes privacy laws to make AI development easy
: Opting out of personal data use won't be an option because Minister says that's a 'very big obstacle' to AI adoption

How a 40-Minute Window Brought Down a $10 Billion AI Startup: The Mercor Data Breach, Explained
A poisoned open-source package, a credential-stealing payload, and 4 terabytes of stolen data here’s what every AI company needs to learn…

Over 16% of Japanese companies experience data breaches
According to the survey, 30.2% of large companies suffered or potentially suffered breaches, significantly higher than 14.3% among small businesses.

Japan police panel urges remote phone analysis to fight anonymous crime groups
TOKYO -- A Japan police advisory panel has proposed the early introduction of remote analysis of smartphones used by anonymous, fluid crime groups, de

Information and Communications in Japan 2024
Bill to ease data protection law for AI development clears Japan's lower house
TOKYO (Kyodo) -- A bill to revise Japan's personal data protection law passed the House of Representatives on Tuesday, paving the way for eased restri

Dark Code
A few months ago, a founder I know had a data leak that took his security team four days to understand.

New AI Flaw Reporting System Fills Crucial Security Gap | CMU Software Engineering Institute
Flaw Reporting for AI (FLARE-AI) allows developers and security researchers to submit artificial intelligence flaws for formal, coordinated disclosure.

AI Companies Are Trying to Hide a Staggering Amount of Debt
AI companies are pouring tens of billions of dollars into enormous data centers. They're being built on top of a mountain of hidden debt.

I’ve long been critical of the weak cybersecurity in Japan, but this is specifically about the series of data leaks circa September/October 2026 (hoping it won’t go on for longer). This is unfortunately such a huge I Told You So moment for me. My spreadsheet (which may or may not be up to date but is in English): drive.proton.me/urls/VJ0WNH1SHR#v9W2jUCoBQTX
サイバー対応特設サイト - 国家サイバー統括室
第374回 個人情報保護委員会 |個人情報保護委員会

2026年度の情報漏えい被害、2.6億人を超える

High-stakes standoff between GMO and hacker group escalates with first data leak

GMO、顧客にパソコン電源オフを要請 27日正午に攻撃との脅迫受け

サイバー攻撃、サイト経由型が急増 弱点探索にAI活用か―セキュリティー大手:時事ドットコム