Disclosure context

About Groove

Groove is a relatively minor ransomware operation that emerged in September 2021, primarily motivated by financial gain through extortion activities. The group's origin and affiliations remain largely undocumented in public threat intelligence reporting, with limited information available about their operational structure or potential ties to other cybercriminal organizations. Based on available data, Groove has demonstrated a focused targeting approach, with documented attacks against media sector organizations, though their specific attack methodologies, initial access vectors, and technical capabilities have not been extensively analyzed or reported by major security firms. The group's operational scale appears limited, with only 13 known victims documented in public reporting, suggesting either a smaller operation or one that has maintained a relatively low profile compared to major ransomware families. Groove's current operational status remains unclear due to the limited public documentation and intelligence reporting available about this particular threat actor. The group has been linked to 13 public disclosures across our corpus. First observed on a leak site on September 9, 2021; most recent post October 30, 2021. The operation is currently inactive.

Timeline of this disclosure

October 23, 2021episcopalretirement.com Возможна утечка listed by Grooveon the group's public leak site

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 1,779 disclosures indexed across all operators we track. Geographically, episcopalretirement.com Возможна утечка is reported in United States, a country with 7,392 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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Episcopal Retirement Services

listed as episcopalretirement.com Возможна утечка · Claimed by Groove · listed 5 years ago

55m

Age

since listed · data leaked

Status timeline

Listed
Oct 23, 2021
Data leaked

At a glance

Group: Groove
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Oct 23, 2021

About the victim

AI dossier — public-source company profile

Episcopal Retirement Services (ERS) is a nonprofit organization providing premier and affordable senior living communities across Cincinnati, OH, Louisville, KY, and the broader Tri-State region. Services include independent living, assisted living, memory care, long-term care, short-term rehabilitation, and community-based programs such as Meals on Wheels. ERS has been recognized as one of Cincinnati's Top Workplaces for over 16 consecutive years.

Industry: Senior Living & Long-Term Care Services
Address: Cincinnati, OH (also operates in Louisville, KY and across the Tri-State region)

Attack summary

Severity: critical — Episcopal Retirement Services is a healthcare and senior care provider handling highly sensitive regulated data including medical records, personal health information, and financial records of elderly residents — a population afforded strong regulatory protections (HIPAA). The disclosed status of 'data_published' confirms exfiltration of likely regulated PII and PHI at scale.

The Groove ransomware group has claimed an attack on Episcopal Retirement Services, with the disclosure status listed as data_published, indicating data has been exfiltrated and published. No specific details about the volume or nature of published data are captured in the leak post.

critical

Data the group says was taken

AI dossier — extracted from the leak post

Resident personal information
Medical/care records
Staff employment records
Financial/billing records
Organizational operational data

Sources

Victim siteepiscopalretirement.com

Source

Indexed 5 years 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.