NMR.CO.UK Listed by clop Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

For dairy and livestock farmers across the UK who rely on NMR.CO.UK for milk recording, genetic testing, disease screening and herd management, the appearance of the organisation on a ransomware group's leak site raises immediate practical questions. Personal and business details held by a farmer-owned cooperative can include farm identifiers, animal health records and contact information that, if exposed, could be misused for fraud, targeted scams or competitive harm. Public detail remains limited, yet the listing itself is enough to warrant careful attention from anyone who has shared data with the service.

On 27 February 2025, NMR.CO.UK was reported as listed by the clop ransomware group. The group claims internal files were exfiltrated in a ransomware attack. The number of people affected is unknown, and further specifics about timing, scale or method have not been disclosed in available records.

Inside the incident

According to the reported information, NMR.CO.UK was listed by the clop ransomware group on 27 February 2025. The group asserts that internal files were taken during a ransomware attack. No confirmed figure for the number of individuals or organisations affected has been published, and the precise date of any intrusion, the initial access method and the volume of data involved remain undisclosed. The listing on the group's site constitutes a claim by the threat actor rather than an independently verified confirmation of the full scope of the incident. Public records available at the time of reporting do not detail whether systems were encrypted, whether a ransom demand was made, or whether any data has been released beyond the listing itself.

Who is clop?

Clop is a well-documented ransomware group that has operated for several years using a double-extortion model: encrypting systems while also stealing data and threatening to publish it if payment is not made. The group is known for targeting large organisations and supply-chain software, often exploiting vulnerabilities in file-transfer tools or other internet-facing services. Once inside a network, clop operators typically move laterally, identify valuable data, exfiltrate it and then deploy ransomware. Victims are frequently listed on a dedicated leak site as pressure to negotiate. Notable prior campaigns have involved widespread exploitation of zero-day flaws, after which the group posts victim names and sample files. In this case, the listing of NMR.CO.UK is presented by the group as evidence of a successful intrusion; independent verification of the claim has not been provided in the available facts.

About NMR.CO.UK

NMR.CO.UK functions as a central hub for dairy and livestock farmers in the United Kingdom. As a farmer-owned cooperative it supplies milk recording, genetic testing, disease testing, farm software and reproductive-management tools. These services help members improve herd productivity, efficiency and profitability, and extend to payment testing and broader herd-management solutions. Organisations of this type routinely hold detailed operational data about farms, animals and the people who run them. A breach involving such a cooperative is consequential because the information supports day-to-day agricultural decisions and often includes identifiers that link individual farmers, their livestock and their commercial relationships. Disruption or exposure can therefore affect both the cooperative's ability to deliver services and the privacy and security of its members.

What data was at risk

The available facts state that internal files were exfiltrated in a ransomware attack. Exact data types beyond that description have not been disclosed. Organisations providing milk recording, genetic and disease testing, and farm-management software typically store farm and herd identifiers, animal health and performance records, contact details for farmers and staff, and related commercial or payment information. Because the precise contents of the files claimed by clop remain unconfirmed, it is not possible to state with certainty which of these categories, if any, were included. Readers should treat any specific assertions about the data as provisional until further official detail emerges.

The real-world impact

For farmers and staff whose information may have been among the internal files, the primary risks are identity misuse, targeted phishing that references genuine farm or herd details, and potential commercial disadvantage if operational data reaches competitors or other unauthorised parties. Even limited contact or location information can enable convincing social-engineering attempts. For NMR.CO.UK itself, the incident may disrupt service delivery, require forensic investigation and remediation, and affect member trust. Because the number of people affected is unknown and the exact data set is unconfirmed, the full scale of these effects cannot yet be quantified. The practical consequence is that anyone who has used the cooperative's services should remain alert to unusual communications and monitor accounts linked to their farming operations.

What to do if you're exposed

If you have an account or business relationship with NMR.CO.UK, treat the listing as a prompt to review your exposure. Change passwords on any related systems, enable multi-factor authentication where available, and watch for unexpected emails or calls that reference farm, herd or payment details. Monitor financial and agricultural accounts for unusual activity. Consider placing fraud alerts with relevant credit or identity services if personal identifiers may have been involved. Readers can also run a free exposure scan of their email address to check whether that address has already appeared in known breach data sets; doing so provides an additional, concrete step while official details remain limited.

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