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Recent Breaches › Hooke Laboratories Listed by thegentlemen Ransomware Group

HIGH severity claimedUnverified claimHow we verify

Hooke Laboratories Listed by thegentlemen Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

RBRecent Breaches Breach Intelligence·July 1, 2026
Hooke Laboratories Listed by thegentlemen Ransomware Group

Occurred June 2026 · publicly disclosed July 1, 2026.

HIGH
Severity
July 1, 2026
Disclosed
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Hooke Laboratories has been listed by thegentlemen ransomware group, with internal files reported exfiltrated in the attack. The breach came to light on July 01, 2026; anyone connected to the organisation should check whether their information was exposed and take appropriate steps.

Severity & verification
HIGH severity claimedUnverified claim
Exposes medical data.
Published on a ransomware group’s leak site — an unverified extortion claim until the named organization or credible reporting corroborates it.
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On July 1, 2026, the ransomware group thegentlemen listed Hooke Laboratories on its leak site and claimed to have exfiltrated internal files during a ransomware attack. The number of people affected has not been reported, and no further confirmation of the incident or its scope has been made public. Public information about the event remains limited to the group’s listing and the stated data type.

Breaking down the breach

The available facts indicate only that thegentlemen posted Hooke Laboratories as a victim and asserted that internal files were taken in a ransomware operation. No date for the underlying attack, no volume of data, and no technical details on how access was obtained have been disclosed. The listing itself constitutes the group’s claim; independent verification of the exfiltration has not been reported.

Who is thegentlemen?

Thegentlemen is a ransomware operator that maintains a public leak site to list organizations it claims to have targeted. Such groups typically encrypt systems and threaten to publish stolen material unless demands are met. In this instance the group claims Hooke Laboratories appears on its site following an alleged ransomware incident, but no additional statements or evidence specific to this victim have been released.

About Hooke Laboratories

Hooke Laboratories is a biotechnology company based in Lawrence, Massachusetts, that supplies biological products for medical and pharmaceutical research. Its best-known offerings are Hooke Kits, ready-to-use emulsions used to induce animal models of autoimmune diseases such as experimental autoimmune encephalomyelitis in laboratory rodents. The firm operates exclusively in the preclinical space, working with rodents and in-vitro systems, and does not produce or distribute products for human clinical use.

What data was at risk

The only data type named in the reporting is internal files exfiltrated during the claimed ransomware attack. No inventory of specific documents, databases, or record categories has been published. Companies of this kind routinely hold research protocols, supplier and partner records, regulatory documentation, and operational correspondence, yet the precise contents involved here remain unconfirmed.

The real-world impact

Exposure of internal files could create secondary risks for research collaborators or institutions whose information appears in those materials, including potential competitive or regulatory consequences. For Hooke Laboratories the incident adds the tasks of incident response, containment, and any required notifications to partners or authorities. No statements have been issued quantifying financial loss or service disruption.

What to do if you're exposed

Individuals who believe their information may be involved should monitor accounts for unusual activity, enable multi-factor authentication where available, and review privacy settings on any linked services. Organizations can contact Hooke Laboratories directly for guidance on any notifications. Readers may also run a free exposure scan of their email address against known breach data sets to check for prior appearances in public records.

AICompiled with AI assistance from public sources and published under our editorial standards.

Editorial & sourcing policy
Recent Breaches is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data, and we do not hold the data claimed in leak-site listings. Incidents are compiled from publicly accessible sources and threat-intelligence platforms and are reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — write to support@galaxywarden.com or press@recentbreaches.com.
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How this breach connects

Company

Attributed to

Method

CompanyHooke Laboratories security record
84/100
DoxxScan™ · Low doxx risk
B- 76Above-average record

1 reported incident on record.

See Hooke Laboratories’s full breach history →

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Source: threat-actor leak-site listing

Publicly posted by thegentlemen — unverified claim, pending independent verification

Breach listings — particularly those originating from ransomware or leak sites — are third-party claims that may be unverified, incomplete, or inaccurate. A listing does not by itself confirm that a breach occurred or that any specific data was exposed. Severity is an automated assessment, not a definitive rating. Verification status is shown where available.

Attributions to threat groups and methods reflect public reporting and, in some cases, unverified claims made by the groups themselves; they may be incomplete or later revised. Recent Breaches and GalaxyWarden are independent and are not affiliated with, and do not endorse, any company or group named on this page. This information is aggregated from public sources for awareness only and is not legal, security, or investment advice.

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