Inotiv disclosed a cybersecurity incident that occurred between August 5 and 8 2025, during which a threat actor gained unauthorized access to its systems and potentially accessed personal data of employees, former employees, and other individuals associated with the company.
The breach involved sensitive data types—including names, Social Security numbers, tax IDs, driver’s license numbers, dates of birth, financial account data, health insurance information, biometric data, and passport details—and affected approximately 9,542 individuals.
Inotiv notified affected parties by mail and email, offered free credit‑monitoring services, and posted a substitute notice on its website. The company also reported the incident to regulators and U.S. law enforcement, and the Qilin ransomware group claimed responsibility and listed Inotiv on its data‑leak site.
The incident has prompted regulatory scrutiny and potential litigation. Inotiv’s Q1 2026 financial results showed revenue of $120.9 million, up 0.8% year‑over‑year, but the company reported an operating loss. The breach may contribute to investor concerns, but the earnings miss was driven by broader market weakness and higher operating costs, not the breach itself.
Management’s commentary highlighted ongoing challenges in the contract‑research space, noting that the Discovery & Safety Assessment segment grew while the Research Models & Services segment declined due to lower non‑human primate volumes. The company remains focused on strengthening cybersecurity defenses and maintaining operational resilience.
The disclosure underscores the importance of robust data protection for companies handling sensitive client and employee information, and it may influence future regulatory expectations and investor risk assessments.
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