Was Four Eye Clinics hit by ransomware?

Four Eye Clinics was listed by the Abyss ransomware operation (United States), 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 Abyss ransomware group?

Abyss 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 Four Eye Clinics breach?

Abyss published data attributed to Four Eye Clinics (~29 GB). Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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Four Eye Clinics

Claimed by Abyss · listed 1 year ago

29 GB

Data size

$50

Ransom

demanded

17m

Age

since listed · data leaked

Status timeline

ListedFeb 2, 2025
Data leakeddate unknown

At a glance

Group: Abyss
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Feb 2, 2025
Data size: 29 GB
Ransom demanded: $50

About the victim

AI dossier — public-source company profile

Four Eye Clinics is a healthcare provider specializing in eye care services. Limited public information is available about the organization.

Industry: Healthcare - Ophthalmology

Attack summary

Severity: high — Confirmed exfiltration of 29 GB from a healthcare provider. Medical data and patient records constitute regulated sensitive information subject to HIPAA and similar privacy laws. Large data volume and published access indicate significant breach.

The Abyss group claims to have exfiltrated 29 GB of uncompressed data from Four Eye Clinics. The group has published the data on their dark web leak site with password-protected archives.

high

Data the group says was taken

AI dossier — extracted from the leak post

patient records
medical data
business documents

What the group claims

centuryvisionglobal.com independenceeye.com kocheye.com prairieeyecenter.com

The leak post

captured from the group's site

```
let data = [
{
        'title' : 'thinlinetech.com',
        'short' : 'thinlinetech.com 29Gb uncompressed data',
        'full' : 'Thinline Technologies <br>' +
                 'Thinline Technologies offers reliable IT consulting and expert computer and network support services to businesses in the Baltimore metro area.<br> They specialize in network administration, technology planning, and help desk services, focusing on increasing productivity and profitability for small to mid-size businesses.<br>'+
            'password: 6oGfyIRISQmmI3Ge2kEeyu7hbzONONEFpkcnhC1S4Ygk4iSpw4RRxDXY1uk9xeyUXOmg7UOuZvGekRc9cs8E61LWKdI08uv0kUyC4V6YxaETtrhniAtKD9t7FQ2qTFYi<br>'+
            'Link â„–1 Filelist',
        'links' : [
            "http://zngbsq66uwem4qzyxpqb5rjo2xebnbwdku27nhmquryx6ljnbbedhiad.onion/thinline.lst.zip",
            "http://zngbsq66uwem4qzyxpqb5rjo2xebnbwdku27nhmquryx6ljnbbedhiad.onion/thinline.rar"
        ]
},
{
        'title' : 'crownlaboratories.com',
        'short' : 'crownlaboratories.com 8Tb uncompressed data',
        'full' : 'Crown Laboratories <br>' +
                 'Crown Laboratories, founded in 2000 and based in Johnson City, TN, provides pharmaceutica…

Screenshot of the leak post

Source

Indexed 1 year 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 Abyss

Abyss is a relatively new ransomware group that emerged in March 2023, operating with primarily financial motivations and targeting organizations across multiple sectors with a focus on English-speaking countries. The group's origin and affiliations remain largely undocumented by major security agencies, though their targeting patterns suggest they operate independently rather than as a Ransomware-as-a-Service model. Their attack methodology and specific tools have not been extensively documented by major threat intelligence firms, though their victim profile of 87 organizations indicates they employ effective initial access techniques to compromise business services, technology, healthcare, and agriculture sectors. The group demonstrates a clear geographic preference for targets in the United States, United Kingdom, Canada, Switzerland, and Hong Kong, suggesting either language preferences or specific regional access capabilities. Due to the group's recent emergence and relatively limited public documentation from established security researchers, detailed information about notable campaigns, encryption methods, or law enforcement actions remains scarce. Abyss appears to remain active as of current reporting, though the lack of extensive public analysis by major threat intelligence organizations suggests they may operate at a smaller scale compared to more prominent ransomware families. The group has been linked to 103 public disclosures across our corpus. First observed on a leak site on March 21, 2023; most recent post June 7, 2026. The operation is currently active.

Timeline of this disclosure

February 2, 2025Four Eye Clinics listed by Abysson the group's public leak site

Data size: 29 GB
Ransom demanded: $50

Other recent disclosures by Abyss

Abyss has been linked to 103 public victims on Darkfield. A sample of the most recent:

See the full Abyss dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,600 disclosures indexed across all operators we track. Geographically, Four Eye Clinics is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Abyss means Four Eye Clinics 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, CISA (United States), as required for your jurisdiction.
Monitor for the data appearing on Abyss'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.