Was Harris Beach Murtha hit by ransomware?

Harris Beach Murtha was listed by the SilentRansomGroup ransomware operation (New Zealand), 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 SilentRansomGroup ransomware group?

SilentRansomGroup 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 Harris Beach Murtha breach?

SilentRansomGroup published data attributed to Harris Beach Murtha. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Harris Beach Murtha

Claimed by SilentRansomGroup · listed 3 months ago

Age

since listed · data leaked

Status timeline

ListedApr 15, 2026
Data leakeddate unknown

At a glance

Group: SilentRansomGroup
Status: Data leaked
Country: New Zealand
Sector: Business Services
Listed on leak site: Apr 15, 2026

About the victim

AI dossier — public-source company profile

Harris Beach Murtha is a full-service law firm formed through the merger of Harris Beach and Murtha Cullina, operating primarily in the northeastern United States across Connecticut, New York, and nearby states. The firm provides legal services spanning corporate law, litigation, real estate, healthcare, and public finance. Its clients include businesses, municipalities, nonprofits, and individuals.

Industry: Legal Services
Employees: 201-500

Attack summary

Severity: critical — A full-service law firm handling healthcare, corporate, municipal, and individual client matters almost certainly holds highly sensitive regulated data including attorney-client privileged communications, PII at scale, and potentially protected health information (PHI). The disclosed_status is 'data_published', confirming actual exfiltration and publication of such data.

SilentRansomGroup claims to have attacked Harris Beach Murtha and has published data, though specific details on encryption or exfiltration scope and the nature of the published data are not described in the leak post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Corporate records
Litigation documents
Real estate transaction records
Healthcare-related legal documents
Public finance records
Employee data

Original description

AI-summarised, not from the leak post

Harris Beach Murtha is a full-service law firm operating in the United States, primarily in the northeastern region. Formed through the merger of Harris Beach and Murtha Cullina, the firm provides legal services across areas including corporate law, litigation, real estate, healthcare, and public finance. It serves clients ranging from businesses and municipalities to nonprofits and individuals across Connecticut, New York, and nearby states.

Source

Indexed 3 months 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 SilentRansomGroup

Based on the limited available information, SilentRansomGroup is a relatively new ransomware operation that first emerged in May 2025, appearing to be financially motivated given their targeting patterns across multiple high-value sectors. The group's origin and affiliations remain unclear due to their recent emergence, though their diverse geographic targeting including the United States, Germany, Canada, and Russia suggests either a sophisticated operation or potential ransomware-as-a-service model. Their attack methodology and specific technical capabilities have not been extensively documented by major security researchers, though their targeting of business services, financial services, hospitality, and manufacturing sectors indicates they likely focus on organizations with both valuable data and ability to pay significant ransoms. With 93 known victims across multiple countries and sectors in a relatively short timeframe since May 2025, SilentRansomGroup has demonstrated notable activity levels, though specific high-profile campaigns or ransom amounts have not been publicly disclosed by CISA, FBI, or major threat intelligence firms. The group appears to remain active as of current reporting periods, though comprehensive technical analysis and attribution efforts by established security researchers are still developing given their recent emergence in the threat landscape. The group has been linked to 120 public disclosures across our corpus. First observed on a leak site on May 6, 2025; most recent post June 17, 2026. The operation is currently active.

Timeline of this disclosure

April 15, 2026Harris Beach Murtha listed by SilentRansomGroupon the group's public leak site

Other recent disclosures by SilentRansomGroup

SilentRansomGroup has been linked to 120 public victims on Darkfield. A sample of the most recent:

See the full SilentRansomGroup dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Harris Beach Murtha is reported in New Zealand, a country with 11 ransomware disclosures in our corpus.

If your organisation is affected

A listing by SilentRansomGroup means Harris Beach Murtha 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, CERT NZ (New Zealand), as required for your jurisdiction.
Monitor for the data appearing on SilentRansomGroup'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.