Sansei Technologies says a third-party cyberattack on subsidiary FORREC was detected on April 3. Its final investigation found no evidence of personal or customer data leakage; the impact was minor, and business has resumed.
Hokuyo said ransomware disrupted its systems on March 26, 2026, and announced the incident on May 11. Systems were restored and business operations were unaffected, while an external investigation into possible personal-data leakage continues.
JR Tokai Takashimaya reported unauthorized access to its part-time hiring server. Up to 1,338 employees’ personal data, including bank account details, may have been exposed; leakage is unconfirmed and a ransomware infection is suspected.
Seidensha Electronic Industrial said an after-hours IT system outage began April 22 and it is investigating a possible cyberattack. It isolated network connections; effects on personal information and other assets remain unknown.
Marutake says unauthorized external access led to a ransomware-caused outage. Some systems remain disrupted, recovery may take days, and personal-information leakage has not been confirmed; medicine supply continues through alternative methods.
B&G Foundation said malware caused unauthorized access and a server outage discovered April 21. It isolated affected servers and networks; no external leak of personal or confidential data has been confirmed. Investigation and recovery continue.
Yamaichi Electronics says ransomware affected some servers at its Philippine subsidiary, Pricon Microelectronics. The company confirmed the incident on Apr. 17 and announced it Apr. 22; recovery and investigation continue, with business impact under review.
