Was O'Hagan Meyer hit by ransomware?

O'Hagan Meyer was listed by the SilentRansomGroup ransomware operation, 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 O'Hagan Meyer breach?

SilentRansomGroup published data attributed to O'Hagan Meyer. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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O'Hagan Meyer

Claimed by SilentRansomGroup · listed 4 hours ago

Today

Age

since listed · data leaked

Status timeline

ListedOct 8, 2026
Data leakeddate unknown

At a glance

Group: SilentRansomGroup
Status: Data leaked
Sector: Professional Services
Listed on leak site: Oct 8, 2026

About the victim

AI dossier — public-source company profile

O'Hagan Meyer is a U.S. national law firm specializing in business litigation and labor & employment law. No further details are publicly available from the submission.

Industry: Legal Services – Business Litigation & Labor Law

Attack summary

Severity: medium — Data has been published by the threat actor, but the truncated leak post provides no specifics on data category, volume, or sensitivity. Law firm records typically contain privileged attorney-client communications and client PII, which would be regulated; however, without confirmation of what was actually exfiltrated, severity cannot be escalated to 'high' or 'critical'.

SilentRansomGroup claims to have compromised O'Hagan Meyer and published data. The leak post does not specify whether encryption, exfiltration, or both occurred, nor does it detail the scope or nature of data at stake.

medium

What the group claims

U.S. national law firm focused primarily on business litigation and labor & employment law. It was fou…

Source

Indexed 4 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 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 166 public disclosures across our corpus. First observed on a leak site on May 6, 2025; most recent post October 8, 2026. The operation is currently active.

Also tracked as: Luna Moth, Silent Ransom, TG2729.

Timeline of this disclosure

October 8, 2026O'Hagan Meyer listed by SilentRansomGroup on the group's public leak site

Other recent disclosures by SilentRansomGroup

SilentRansomGroup has been linked to 166 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 Professional Services sector, which has 17 disclosures indexed across all operators we track.

If your organisation is affected

A listing by SilentRansomGroup means O'Hagan Meyer 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.
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.