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Pierluigi Paganini July 31, 2026
SilverFox Targets Japanese Manufacturer With Advanced ValleyRAT Campaign

SilverFox targeted a Japanese manufacturer with new DLL sideloading techniques, kernel drivers, and resilient ValleyRAT persistence mechanisms. Cato CTRL documented a new SilverFox campaign targeting a Japanese industrial manufacturer. The attack chain adds two previously undocumented DLL-sideloading hosts, two kernel drivers not previously associated with SilverFox, and a dual-layer recovery architecture that keeps ValleyRAT running […]

Pierluigi Paganini July 17, 2026
A cyberattack hit Nichirei, one of Japan’s largest food companies

A cyberattack hit one of Japan’s largest food companies, Nichirei, disrupting logistics and shipments. The company is gradually restoring operations. Nichirei is one of Japan’s largest food companies, best known for its frozen food business. Founded in 1942 and headquartered in Tokyo, it operates globally through dozens of subsidiaries. The food giant confirmed that the […]

Pierluigi Paganini July 14, 2026
Malware Hits Japan’s Largest Taxi Company Nihon Kotsu, Services Temporarily Suspended

Japan’s largest taxi operator Nihon Kotsu shut down systems after a malware attack, disrupting dispatch and bookings. Nihon Kotsu, Japan’s largest taxi company, disclosed on July 13, 2026 that its internal systems suffered an unauthorized external access involving malware infection in the early morning hours of Saturday, July 11. The company immediately shut down systems […]

Pierluigi Paganini June 30, 2026
Hackers Steal Data of 4.38 Million Aflac Japan Customers

Hackers stole data from 4.38 million Aflac Japan customers after accessing its systems for 10 days before the breach was detected. Aflac Japan disclosed that hackers stole the personal information of 4.38 million customers and agents after gaining access to its systems between June 15 and June 25. Attackers stole data from the company policyholder […]

Pierluigi Paganini May 18, 2026
Public Amazon bucket leaks sensitive guest data from Japanese hotel platform Tabiq

A hotel check-in system exposed over 1 million passports, IDs, and selfies online due to a misconfigured cloud storage bucket. A security lapse in the Reqrea’s Tabiq hotel check-in system exposed over 1 million passports, driver’s licenses, and selfie verification photos online. The issue came from a misconfigured Amazon cloud storage bucket that was left […]

Pierluigi Paganini February 16, 2026
Japanese sex toys maker Tenga discloses data breach

Sex toy maker Tenga says a hacker accessed an employee’s email account, potentially exposing customer names, emails, and order details. TENGA Co., Ltd. is a Tokyo-based Japanese sexual wellness and lifestyle company known for its innovative adult products. It employs roughly 125–200 people worldwide across its Japan headquarters and international offices. Tenga operates in personal […]

Pierluigi Paganini October 21, 2025
Japanese retailer Muji halted online sales after a ransomware attack on logistics partner

Muji halted online sales after a ransomware attack on its logistics partner Askul, disrupting orders, app services, and website access. Japanese retailer giant Muji suspended online sales after a ransomware attack hit its logistics partner Askul. The cyber incident disrupted deliveries and online store functions, including orders and app services. “Due to a logistics issue […]

Pierluigi Paganini October 18, 2025
Winos 4.0 hackers expand to Japan and Malaysia with new malware

Winos 4.0 hackers expand from China, Taiwan to Japan, Malaysia using fake Finance Ministry PDFs to spread HoldingHands RAT malware. Threat actors behind Winos 4.0 (ValleyRAT) have expanded their attacks from China and Taiwan to Japan and Malaysia, using PDFs disguised as documents from the Finance Ministry to deliver malware. Attackers employed another remote access […]

Pierluigi Paganini May 19, 2025
Japan passed a law allowing preemptive offensive cyber actions

Japan passed a law allowing preemptive offensive cyber actions, shifting from its pacifist stance to bolster defenses like major Western powers. Japan has enacted the Active Cyberdefense Law, allowing preemptive offensive cyber operations to counter threats before damage occurs. This marks a shift from Japan’s pacifist stance under Article 9, aiming to elevate its cyber […]

Pierluigi Paganini April 22, 2025
Japan ’s FSA warns of unauthorized trades via stolen credentials from fake security firms’ sites

Japan ’s Financial Services Agency (FSA) warns of hundreds of millions in unauthorized trades linked to hacked brokerage accounts. Japan ’s Financial Services Agency (FSA) reported that the damage caused by unauthorized access to and transactions on internet trading services is increasing. “There has been a sharp increase in the number of cases of unauthorized […]