Was oklahomasleepinstitute.com hit by ransomware?

oklahomasleepinstitute.com was listed by the Threeam 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 Threeam ransomware group?

Threeam 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 oklahomasleepinstitute.com breach?

Threeam published data attributed to oklahomasleepinstitute.com. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

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oklahomasleepinstitute.com

Claimed by Threeam · listed 2 years ago

20m

Age

since listed · data leaked

Status timeline

ListedOct 10, 2024
Data leakeddate unknown

At a glance

Group: Threeam
Status: Data leaked
Country: United States
Sector: Healthcare
Listed on leak site: Oct 10, 2024

About the victim

AI dossier — public-source company profile

Oklahoma Sleep Institute is a comprehensive sleep disorder clinic operating in Oklahoma City and Tulsa metro areas since 2003. They provide diagnostic sleep studies, treatment for sleep disorders (OSA, insomnia, narcolepsy, etc.), and CPAP equipment services, staffed by Advanced Registered Nurse Practitioners and board-certified specialists.

Industry: Healthcare – Sleep Medicine & Diagnostic Sleep Studies
Address: Oklahoma City and Tulsa, Oklahoma, United States
Founded: 2003

Attack summary

Severity: high — Healthcare provider with confirmed data exfiltration (disclosed_status: data_published). Patient medical and personal health information is regulated under HIPAA and is highly sensitive. Even without specific proof counts, the compromise of a sleep clinic's patient database constitutes significant exposure of regulated healthcare data.

Threeam group claims to have compromised Oklahoma Sleep Institute and published exfiltrated data. No specific details on the scope or nature of data exfiltrated are provided in the truncated leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post

Patient medical records
Sleep study data
Personal health information
Patient contact information

What the group claims

The Oklahoma Sleep Institute, founded in 2003, is dedicated to providing the highest quality sleep medicine to the community. We are a comprehensive Sleep Disorder Clinic staffed by Advanced Registered Nurse Practitioners and a Board Certified...

Sources

Victim siteoklahomasleepinstitute.com
Leak posthttp://threeamkelxicjsaf2czjyz2lc4q3ngqkxhhlexyfcp2o6raw4rphyad.onionpost.php?id=41

Source

Indexed 2 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.

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Disclosure context

About Threeam

Threeam is a financially motivated ransomware group that emerged in September 2023, operating as a relatively new player in the ransomware ecosystem with 64 documented victims across multiple countries and sectors. The group's origin and potential affiliations remain unclear due to limited public documentation from major security agencies, though their targeting patterns suggest a broad opportunistic approach rather than nation-state backing. Based on available victim data, Threeam appears to employ common initial access vectors targeting organizations across business services, healthcare, manufacturing, and technology sectors, with the United States, United Kingdom, Australia, France, and Brazil representing their primary geographic focus areas. While specific technical details about their encryption methods and extortion tactics have not been extensively documented by major threat intelligence firms, their emergence in late 2023 and victim count suggests they have established operational capabilities within the competitive ransomware landscape. The group's current operational status remains active based on the recency of their emergence, though detailed law enforcement actions or disruption efforts have not been publicly reported by CISA, FBI, or other major security organizations. The group has been linked to 85 public disclosures across our corpus. First observed on a leak site on September 14, 2023; most recent post June 12, 2026. The operation is currently inactive.

Timeline of this disclosure

October 10, 2024oklahomasleepinstitute.com listed by Threeamon the group's public leak site

Other recent disclosures by Threeam

Threeam has been linked to 85 public victims on Darkfield. A sample of the most recent:

See the full Threeam dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,593 disclosures indexed across all operators we track. Geographically, oklahomasleepinstitute.com is reported in United States, a country with 11,033 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Threeam means oklahomasleepinstitute.com 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 Threeam'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.