TEIN says ransomware may have exposed personal data of 7,304 employees and shareholders

TEIN, Inc. said in a final report on 8 April 2026 that ransomware had infected systems it manages, and that personal data of 7,304 employees and shareholders may have leaked ^[1]. It said its US subsidiary reported on 30 October 2025 that it could not reach internal servers, after which files were found encrypted with a ransom note; attackers exploited a system vulnerability, and the data may include shareholders' names, addresses and shareholdings and, for some staff, phone numbers, emails, pension numbers and My Number IDs, but not credit-card data ^[1]. TEIN says no misuse has been confirmed so far, but asks people not to open attachments on unexpected emails and to delete them at once, not to give important information on suspicious calls, and to be careful with unexpected post ^[1].

Industries mainly affected: Manufacturing

1. Do not open attachments on unexpected emails; delete the message immediately ^[1].
2. Do not give important personal data on suspicious phone calls .