Was arambol.co.uk hit by ransomware?

arambol.co.uk was listed by the m3rx ransomware operation (United Kingdom), and stolen data was published on the group's leak site. Darkfield tracks this disclosure with the original leak post, screenshot and group context.

Who is the m3rx ransomware group?

m3rx is a ransomware operator tracked by Darkfield. See the full operator dossier for its known victims, sectors targeted, IOCs and leak-site infrastructure.

What data was leaked in the arambol.co.uk breach?

m3rx published data attributed to arambol.co.uk. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Arambol LLP

listed as arambol.co.uk · Claimed by M3Rx · listed 3 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedJul 17, 2026
Data leakeddate unknown

At a glance

Group: M3Rx
Status: Data leaked
Country: United Kingdom
Listed on leak site: Jul 17, 2026

About the victim

AI dossier — public-source company profile

Arambol LLP is a UK-based partnership of chartered surveyors and property consultants offering services including property consultancy, project management, cost consultancy, building surveying, and construction management. They serve large property organizations, retailers, local authorities, and residential developers across healthcare, industrial, commercial, public sector, education, and hospitality sectors.

Industry: Property Consultancy & Surveying Services
Address: International House, 21 Hanover Street, London W1S 1YU, UK

Attack summary

Severity: high — Confirmed exfiltration of 922 GB (584,228 files) from a professional services firm handling sensitive client data across regulated sectors (healthcare, public sector, education). Client information and project details for major organizations (Aldi, RMT, etc.) likely exposed. Data has been published.

m3rx claims to have exfiltrated 922 GB of data comprising 584,228 files from Arambol LLP. The group has published the data without stating specific ransom demands.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client records
Project documentation
Financial/cost consultancy files
Property survey reports
Construction management data
Institutional client information

What the group claims

+44 2079276370 , Arambol LLP is a dynamic partnership of chartered surveyors and property consultants, recognized for their commitment to quality and professionalism in property services. They cater to a diverse clientele, including large property organizations, retailers, local authorities, and small residential developers. Their service offerings encompass property consultancy, project management, cost consultancy, building surveying, and construction management. Arambol operates across various sectors such as healthcare, industrial, commercial, public sector, education, and hospitality. Stolen: 922 GB 584,228 Files

Sources

Victim sitearambol.co.uk
Leak posthttp://4k6plf4h2cm2nco6ae3inrsxnmqgl6lllmwefydhnlcq4tuhwbj4qpad.onion#arambol.co.uk

Source

Indexed 3 hours ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About m3rx

Based on the limited publicly available information, m3rx is an emerging ransomware group first observed in April 2026 with a relatively small victim count of eight organizations, suggesting they are either a newly formed operation or a smaller-scale criminal enterprise focused on financial gain. The group's origin and affiliations remain unclear, with no documented evidence from major security vendors or law enforcement agencies regarding their geographical base, operational structure, or whether they operate as an independent cell or as part of a larger ransomware-as-a-service ecosystem. Their attack methodology and specific technical capabilities have not been extensively documented by established threat intelligence sources, though their targeting pattern indicates a preference for English-speaking nations including Great Britain, Australia, and the United States, as well as operations in Switzerland and Italy, with victims spanning consumer services, business services, technology, and healthcare sectors. No major campaigns, high-profile victims, or significant ransoms have been publicly reported by CISA, FBI, Mandiant, or other reputable security researchers, likely due to the group's recent emergence and limited scope of operations. Given their recent first observation date and small victim count, m3rx appears to be in early operational stages with their current activity status and long-term viability remaining uncertain. The group has been linked to 31 public disclosures across our corpus. First observed on a leak site on April 29, 2026; most recent post July 17, 2026. The operation is currently active.

Timeline of this disclosure

July 17, 2026arambol.co.uk listed by m3rxon the group's public leak site

Other recent disclosures by m3rx

m3rx has been linked to 31 public victims on Darkfield. A sample of the most recent:

See the full m3rx dossier →

Sector and geography

Geographically, arambol.co.uk is reported in United Kingdom, a country with 373 ransomware disclosures in our corpus.

If your organisation is affected

A listing by m3rx means arambol.co.uk appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
Report the incident to your national CERT, NCSC (United Kingdom), as required for your jurisdiction.
Monitor for the data appearing on m3rx's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.