McKim & Creed Listed by ransomhub Ransomware Group: Ransomware Claim — What’s Alleged & What To Do

On March 13, 2024, the engineering and professional services firm McKim & Creed was listed by the ransomware group known as ransomhub. Public reporting indicates that the group claims to have exfiltrated internal files in a ransomware attack, with a claimed data size of more than 500 GB. The number of people affected remains unknown, and the listing notes that the data has not been published.

Details beyond the leak-site claim are limited. The incident matters because organisations of this type routinely handle project files, client records and internal business data that can create lasting risks if they leave the organisation’s control.

What happened

According to the available record, McKim & Creed was listed by ransomhub on March 13, 2024. The group’s claim states that internal files were exfiltrated during a ransomware attack. The listing records a data size of 500+ GB, 62 visits, and notes that the material has not been published. No further public confirmation of the attack method, exact timing of intrusion, or verification of the claimed volume has been provided in the facts. The number of individuals whose information may be involved is listed as unknown.

Because the only source is the group’s own listing, the claim that data was taken remains unverified by independent reporting in the available record. No additional technical indicators, ransom demands, or statements from the organisation itself appear in the facts.

Inside ransomhub

Ransomhub is a ransomware operation that became active in the public threat landscape after the disruption of earlier groups. Like many contemporary ransomware actors, it typically follows a double-extortion model: encrypting systems while also claiming to steal data and threatening to release it if payment is not made. The group maintains a leak site where it posts victim names, claimed data volumes and, in some cases, sample files or full archives once a deadline passes.

Public reporting on ransomhub shows it has targeted a range of sectors, often using initial access obtained through compromised credentials, phishing or vulnerable remote services, followed by lateral movement and data staging before encryption. The group’s listings frequently include metrics such as visit counts and claimed data sizes, which serve both as pressure on the victim and as marketing to other criminals. In this case the listing for McKim & Creed shows “Published: False,” meaning the group has not yet released the claimed archive according to its own site.

No statements attributed specifically to ransomhub about McKim & Creed beyond the basic listing details are present in the facts. Any further claims of negotiation status or payment remain undisclosed.

Who is McKim & Creed?

McKim & Creed is a professional services firm that provides engineering, surveying, planning and related technical consulting. Organisations of this kind work with public- and private-sector clients on infrastructure, environmental, land-development and facilities projects. Their day-to-day operations generate large volumes of technical drawings, project correspondence, contracts, employee records and client contact information.

A breach involving such a firm is consequential because the data it holds often includes both proprietary project material and personal information of employees, clients and partners. Even when the precise contents of an alleged theft remain unconfirmed, the nature of the work means that exposure can affect ongoing projects, contractual relationships and the privacy of individuals whose details appear in internal systems.

What was likely exposed

The facts state only that “internal files” were claimed to have been exfiltrated. No specific categories such as names, Social Security numbers, financial account details or medical records are named. The claimed volume is listed as 500+ GB, but the exact composition of that material is undisclosed.

Firms in the engineering and surveying sector typically store project files, CAD drawings, survey data, contracts, invoices, employee personnel records, client contact lists and internal communications. Any of these could be present among the claimed files, yet none can be confirmed from the available record. Readers should treat the precise contents as unconfirmed until independent verification or official notification appears.

The real-world impact

For individuals whose information may have been among the internal files, the practical risks include potential misuse of contact details, project-related personal data or employment records for phishing, identity fraud or social-engineering attempts. Because the number of people affected is unknown and the data has not been published according to the listing, the scale of any such risk cannot yet be measured.

For the organisation, the consequences can include operational disruption from any encryption that accompanied the claimed theft, legal and regulatory notification obligations if personal data is later confirmed to be involved, reputational harm with clients, and the cost of investigation and remediation. The fact that the group has listed a large claimed volume but has not published it leaves open the possibility of ongoing extortion pressure.

No dollar amounts, confirmed downtime figures or official statements of impact appear in the facts, so those aspects remain undisclosed.

Were you affected?

If you are a current or former employee, client or partner of McKim & Creed, monitor official communications from the firm for any breach notification. Watch for unexpected emails or calls that reference projects or personal details, and treat unsolicited requests for credentials or payments with caution. Consider placing a fraud alert with the major credit bureaus if you believe sensitive personal data may have been involved, and review account statements for unusual activity.

You can also run a free exposure scan of your email address to check whether it has already appeared in known breach data sets. This provides one practical way to assess whether your information has surfaced publicly, independent of any single incident.

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