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

On February 7, 2026, the ransomware group Clop listed MARK-FINN.CO.UK on its leak site, stating that internal files had been exfiltrated from the UK property consultancy. Public information about the incident remains limited to this listing and the description of the data as internal files obtained during a ransomware attack. The event forms part of a broader pattern of ransomware operations that combine encryption of systems with the removal of data for later leverage. Such listings appear regularly on actor-controlled sites, though confirmation of the underlying events often depends on statements from the affected organisation or subsequent investigations.

Breaking down the breach

The reported details are confined to the leak-site listing and the statement that internal files were taken. The number of individuals affected is not known. Neither the date of the intrusion nor the scale of the data removal has been made public.

No further technical information, such as the initial access method or the duration of unauthorised access, has been disclosed at this stage.

Inside clop

Clop is a ransomware group that has conducted operations for several years. Its typical approach involves deploying ransomware on target networks and, in many cases, copying data before encryption. The group maintains a leak site where it publishes names of organisations it claims to have compromised when ransom demands are not met.

Public records show Clop has targeted entities in multiple countries and sectors. Its listings represent claims made by the group; independent verification of each incident varies and is not provided by the listing itself.

MARK-FINN.CO.UK and its sector

MARK-FINN.CO.UK is a UK-based property consultancy founded by Mark Finn. It provides services in portfolio management, acquisition, strategic planning, development, and investment advice for real-estate projects, working with both domestic and international clients.

Organisations in this sector routinely handle documents related to property transactions, client identities, financial arrangements, and project specifications. A compromise affecting such records can intersect with regulatory obligations under UK data-protection law.

What was likely exposed

The only information released states that internal files were exfiltrated. The precise categories of data within those files have not been confirmed or itemised.

Property consultancies commonly store client correspondence, contract details, financial records, and planning documentation. Without a published inventory, the exact contents of the exfiltrated material remain unconfirmed.

Why it matters

Individuals whose information appears in the files may face risks of identity misuse or targeted fraud, depending on the nature of the records. The organisation itself may encounter regulatory scrutiny and operational disruption while restoring systems and assessing the scope of access.

Because the volume and sensitivity of the data are not yet public, the full implications for clients and staff cannot be quantified from available information.

If your data was in this claimed breach

Monitor bank and credit accounts for unusual activity and consider placing fraud alerts with credit reference agencies. Review any recent correspondence from the organisation for guidance on next steps.

Readers can run a free exposure scan of their email address against known breach data sets to determine whether their information has appeared in previously published incidents.

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