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Drug research firm Inotiv reported to the U.S. Securities and Exchange Commission that it is still assessing the full financial and operational impact of a ransomware attack attributed to the Qilin group. The August incident resulted in the encryption of certain company systems and the alleged theft of data belonging to nearly 10,000 individuals. Inotiv has since restored access to affected IT systems and is in the process of notifying breach victims.
The company disclosed that it incurred approximately $2.48 million in costs related to the cyber incident and associated legal matters during the most recent quarter, with total costs for the fiscal year reaching nearly $5.93 million. The SEC filings did not specify the exact breakdown of these costs, and Inotiv continues to evaluate the ongoing repercussions of the attack.
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By December 2025, Inotiv said it was still assessing the full financial impact of the ransomware attack and had incurred significant costs. The company was also facing at least three class action lawsuits alleging it failed to adequately protect sensitive information.
After the attack, Inotiv restored its systems and began notifying affected individuals about the breach. The company said the incident affected 9,542 people, including employees, their families, and other associated individuals.
The Qilin ransomware group claimed responsibility for the attack, alleging it exfiltrated 176 GB of data from Inotiv. Reported stolen information included personal, financial, and other sensitive data, and the group allegedly published the data on its dark web leak site.
Inotiv experienced a ransomware attack in August 2025 that encrypted company systems, disrupted business operations, and led to a data breach. The incident affected the company and data tied to employees, family members, and others associated with Inotiv or its acquisitions.
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The Qilin ransomware group has emerged as one of the most prolific ransomware operations, claiming responsibility for over 500 attacks in the past six months and targeting major organizations worldwide. Notably, Qilin has allegedly stolen 10 GB of data from International Game Technology (IGT), a multinational provider in the gaming and fintech sectors, with over 21,000 files reportedly exfiltrated. The group has also targeted other high-profile victims, including Cornerstone Staffing Solutions, Spark Power, and Habib Bank AG Zurich, and is known to collaborate with other ransomware operations such as DragonForce and LockBit. Qilin, along with Akira and INC, accounted for 65% of ransomware attacks in Q3 2025, with a significant portion of these incidents facilitated by compromised VPN credentials. Ransomware activity has seen a marked increase globally, with leak posts rising by 11% over the previous quarter and a surge in attacks reported in October. Attackers are increasingly exploiting vulnerabilities in VPNs and external services, and the prevalence of zero-day vulnerabilities has also grown, with notable bugs affecting Citrix NetScaler, CrushFTP, and Microsoft SharePoint. Security experts recommend organizations implement multi-factor authentication and strengthen vulnerability management practices to mitigate the escalating ransomware threat landscape.
Jun 29, 2026
Ransomware monitoring sources recorded a surge of victim claims led by **Qilin**, which posted attacks against organizations in the United States, Argentina, France, Italy, Peru, Brazil, Turkey, and the United Kingdom. Named victims included **Cafar**, **Droguería Martorani**, **AK Preparedness**, **Armara**, **Sicc**, **KLD Labs**, **St Martha Catholic Church**, **Salina Supply**, **The Nueva School**, **City Ambulance Service**, **Famesa**, **Associated Theatrical Contractors**, **Don Tortaco Mexican Grill**, **Eana**, **PP+K**, **Synergy Products**, and **Bolt & Nut Manufacturing**. The affected sectors spanned healthcare, education, manufacturing, agriculture and food production, hospitality, technology, business services, and religious organizations, underscoring broad opportunistic targeting rather than a single-industry campaign. Other groups also continued to post new victims. **Incransom** claimed attacks on **v-silicon.com** in Taiwan, **Reatile Group** in South Africa, **Vedan Corp** in Vietnam, and **V&P Nurseries** in the United States; **DragonForce** claimed **NewNet S.A.** in Colombia and separately threatened Switzerland's **Ifage** with publication of **850 GB** of allegedly stolen data after an earlier intrusion; **Krybit** listed **Euroins Insurance Company AD** in Bulgaria; and **Akira** claimed **McKeever, Varga & Senko** in the United States, alleging theft of **12 GB** of corporate and personal data. A weekly ransomware trend report based on **eCrime.ch** data counted **187** claims for the period, down from **233** the prior week, but still identified **Qilin** as the most active group with **33** claims, ahead of **DragonForce** with **27**.
Sep 1, 2026
The Qilin ransomware gang has claimed responsibility for significant cyberattacks against major North American organizations, including Canadian electrical services provider Spark Power and U.S.-based recruitment firm Cornerstone Staffing Solutions. In the Spark Power incident, Qilin alleges the theft of 222 GB of data, potentially including operational files, financial records, and employee personal information, with researchers warning of possible operational disruptions if systems are locked. For Cornerstone Staffing Solutions, Qilin claims to have exfiltrated 300 GB of sensitive data, including nearly 1 million files with resumes, personal records, Social Security numbers, and internal financial documents, with sample files leaked to substantiate the breach. Qilin has emerged as one of the most prolific ransomware operations, reportedly targeting nearly 1,000 organizations since 2023 and over 500 in the past six months alone. The group’s attacks have resulted in the exposure of sensitive employee and business data, raising concerns about the operational and reputational impact on affected organizations. These incidents highlight the ongoing threat posed by ransomware groups to critical infrastructure and service providers across North America.
Jun 29, 2026