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 117 public disclosures across our corpus. First observed on a leak site on May 6, 2025; most recent post May 19, 2026. The operation is currently active.

Timeline of this disclosure

May 8, 2026Sandberg Phoenix listed by SilentRansomGroupon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Not Found sector, which has 4,859 disclosures indexed across all operators we track. Geographically, Sandberg Phoenix is reported in SE, a country with 9 ransomware disclosures in our corpus.

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.

Ransomware victim disclosure

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Sandberg Phoenix

Claimed by SilentRansomGroup · listed 13 days ago

12d

Age

since listed · data leaked

Status timeline

Listed
May 8, 2026
Data leaked

At a glance

Group: SilentRansomGroup
Status: Data leaked
Country: SE
Sector: Not Found
Listed on leak site: May 8, 2026

About the victim

AI dossier — public-source company profile

Sandberg Phoenix is a law firm that has provided legal services for over 45 years to clients of varying sizes throughout the Midwest and beyond. Based on the leak post description, the firm operates across multiple practice areas serving a broad client base. No additional details are available from a public site excerpt.

Industry: Legal Services

Attack summary

Severity: high — Law firms routinely hold privileged client communications, contracts, financial records, and PII at scale; the disclosed/published status confirms data has been released rather than merely threatened, warranting a high severity rating even without explicit data inventory details.

SilentRansomGroup claims to have attacked Sandberg Phoenix and has published data ('data_published' status), though the specific nature of the exfiltrated or encrypted data and its volume are not detailed in the truncated post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Client legal files
Internal business documents

What the group claims

Over 45 years providing superior legal services to clients of every size throughout the Midwest and ac…

Source

Indexed 13 days 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.