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Medium

Drug Research Firm Inotiv Reports Ransomware Attack to SEC

Indiana-based drug research firm Inotiv reported a ransomware attack to the SEC on August 19, 2025.

Key points

  • Inotiv reported a ransomware attack to the SEC on August 19, 2025.
  • Qilin ransomware group claimed responsibility.
  • Encrypted critical systems and disrupted internal networks.

Connected intelligence

Signal brief

Follow the organization, likely method and potential impact to explore connected Shadow Tier intelligence.

02

Likely method

Ransomware

Threat source not confirmed

03

Potential impact

Potential operational disruption

Availability

Published
Aug 19, 2025
Updated
Jun 26, 2026
Confidence
Medium
Evidence
2 sources

Structured assessment

Signal analysis

It helps compare this signal with other published signals without treating the labels as final determinations.

Threat source

Threat source not confirmed

Watch ransomware, endpoint compromise and business interruption exposure.

Business impact

Potential operational disruption
Impact area
Availability

Mentioned entities

InotivDrug Research Firm Inotiv ReportsRansomware AttackSEC Indiana-basedInotivSECThe QilinQilinEncrypted

Quick context

Questions about this signal

What happened in this signal?

Indiana-based drug research firm Inotiv reported a ransomware attack to the SEC on August 19, 2025. The Qilin ransomware group was responsible, encrypting critical systems, disrupting internal networks, and allegedly exfiltrating 176 GB of research data spanning the previous decade.

When was this signal reported?

Shadow Tier lists Aug 19, 2025 as the signal date.

Which organization is connected to this signal?

Inotiv is the organization connected to this public signal.

Explore Inotiv
Which attack pattern is relevant?

This signal is connected to current ransomware incidents based on its reported incident context.

Explore current ransomware incidents