Stay updated on Japan's information security landscape with the latest news, trends, and cyber threat alerts. Your hub for Japanese cyber safety.
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Background for this topic.
Japan is a country renowned for its technological advancements and economic prowess. In the context of information security, Japan is a significant player due to its substantial technology sector, widespread use of digital systems and services, and its efforts to combat cyber threats. The nation is home to numerous tech giants and startups focusing on cybersecurity innovations, and the Japanese government actively collaborates with industry experts to enhance national cyber defenses.
As a developed economy with a high dependency on information technology, Japan faces diverse cyber challenges, ranging from corporate data breaches and cyber espionage to threats against critical infrastructure. The country has enacted laws and policies to safeguard personal data, support cybersecurity measures, and ensure the protection of intellectual property.
Moreover, Japan's cybersecurity strategy is not only about defending against attacks but also building resilient digital ecosystems, educating the public about safe cyber practices, and fostering international cooperation to address global cyber risks. In the ever-evolving field of information security, watching Japan's approaches and developments provides insights into cutting-edge security technologies and strategic defense initiatives.
Weekly headline count for the current query.
A now-patched high-severity security flaw affecting Digital Knowledge KnowledgeDeliver, a Learning Management System (LMS) popular in Japan, was exploited as a zero-day to deliver the Godzilla web shell and ultimately facilitate the deployment of Cobalt Strike Beacon
Mustang Panda campaign deploys updated FDMTP backdoor against Asia-Pacific and Japan networks
Fears exponential increase in attack scale and speed
On December 4, 2025, a 17-year-old was arrested in Osaka under Japan’s Unauthorized Access Prohibition Act. The young man had run malicious code to extract the personal data of over 7 million users of Kaikatsu Club, Japan's largest internet cafe chain. When asked, the young man shared his motivation for the hack: he wanted to buy Pokémon cards
Global financial institutions are panicked over Anthropic's new superhacker AI model. Cyber experts aren't quite as worried.
The deal aims to accelerate AI adoption, train workers, and develop cybersecurity partnerships — the latest move by a hyperscaler to compete for sovereign AI and data centers.
Customizations are causing pain so new cloud will stick to upstream cuts of the open source stack LY Corporation, the Japanese web giant that dominates messaging, e-commerce and payments in many Asian countries, has revealed it is replacing a heavily-customized OpenStack cloud with a more conventional cut of the open source cloud stack – and making massive consolidations along the way.…
In less polite places, this is called ‘hacking back’ or ‘offensive cyber-ops’ Japan’s government yesterday decided to allow its Self-Defense Force to conduct offensive cyber-operations, starting on October 1st.…
Meta on Wednesday said it disabled over 150,000 accounts associated with scam centers in Southeast Asia as part of a coordinated effort in partnership with authorities from Thailand, the U.S., the U.K., Canada, Korea, Japan, Singapore, the Philippines, Australia, New Zealand, and Indonesia
A Chinese keyboard warrior inadvertently leaked information about politically motivated influence operations through a ChatGPT account.
The Washington Hotel brand in Japan has announced that that its servers were compromised in a ransomware attack, exposing various business data. [...]
The North Korean threat actor known as Konni has been observed using PowerShell malware generated using artificial intelligence (AI) tools to target developers and engineering teams in the blockchain sector
Crim used infostealer to get cloud credentials If you don't say "yes way" to MFA, the consequences can be disastrous. Sensitive data belonging to about 50 global enterprises is listed for sale – and, in some cases, has already been sold – on the dark web following a major infostealer campaign, with apparent victims including American utility engineering firm Pickett and Associates; Japan's homebuilding giant Sekisui House; and Spain's largest airline Iberia.…
PLUS: Debian supports Chinese chips ; Hong Kong’s Christmas Karaoke crackdown; Asahi admits it should have prevented hack; And more! APAC in Brief Google and Apple last week started to allow developers of mobile applications to distribute their wares through third-party app stores and accept payments from alternative payment providers.…
New China-aligned APT group is deploying Group Policy to sniff through government networks across Southeast Asia and Japan.
A previously undocumented China-aligned threat cluster dubbed LongNosedGoblin has been attributed to a series of cyber attacks targeting governmental entities in Southeast Asia and Japan
Japan’s Askul still can’t run all its sites, but at least the fax line held up OK Japanese e-tailer Askul has resumed online sales, 45 days after a ransomware attack.…
Asahi Group Holdings, Japan's largest beer producer, has finished the investigation into the September cyberattack and found that the incident has impacted up to 1.9 million individuals. [...]
Brewer finally tallies fallout from September attack as it pushes earnings into 2026 Asahi has finally done the sums on September's ransomware attack in Japan, conceding the crooks may have helped themselves to personal data tied to almost 2 million people.…
A critical security issue in a popular endpoint manager (CVE-2025-61932) allowed Chinese state-sponsored attackers to backdoor Japanese businesses.