Was Hst hit by ransomware?

Hst was listed by the thegentlemen 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 thegentlemen ransomware group?

thegentlemen 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 Hst breach?

thegentlemen published data attributed to Hst. Darkfield captured the leak post and a screenshot of the listing.

Ransomware victim disclosure

← All victims

Healthcare Solutions Team (HST), operating as Claritev

listed as Hst · Claimed by Thegentlemen · listed 1 day ago

Age

since listed · data leaked

Status timeline

ListedAug 7, 2026
Data leakeddate unknown

At a glance

Group: Thegentlemen
Status: Data leaked
Country: United States
Listed on leak site: Aug 7, 2026

About the victim

AI dossier — public-source company profile

Healthcare Solutions Team (HST), now operating as Claritev, is a US-based healthcare cost-containment company specializing in value-driven health plans, reference-based pricing solutions, and patient advocacy. The company operates the HST Care Connect portal to help employers and individuals identify quality healthcare providers and optimize medical benefits.

Industry: Healthcare Cost Containment & Health Plan Management

Attack summary

Severity: high — Confirmed data publication involving a healthcare company with access to health plans, provider networks, and potentially sensitive patient/employer medical benefit information. Healthcare sector data is regulated (HIPAA) and carries inherent sensitivity.

The threat actor claims access to HST/Claritev infrastructure and has published data from the breach. The post does not explicitly state whether data was encrypted, exfiltrated, or both.

high

Data the group says was taken

AI dossier — extracted from the leak post

Healthcare provider networks
Health plan information
Patient advocacy records
Medical benefit data
Employer health plan details

What the group claims

hstechnology.com zoominfo.com/c/hst/352516154 digital platform for Healthcare Solutions Team (HST), a US-based healthcare cost-containment company now operating as Claritev. The company specializes in value-driven health plans, reference-based pricing solutions, and patient advocacy to reduce medical expenses. Through its HST Care Connect portal, it helps employers and individuals seamlessly find quality healthcare providers and optimize their medical benefits

Sources

Victim sitehstechnology.com

Source

Indexed 1 day 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 thegentlemen

thegentlemen is a ransomware group that emerged in September 2025, operating with apparent financial motivations based on their broad targeting of commercial sectors. The group has documented 267 victims across multiple countries, with primary focus on the United States, Thailand, France, Brazil, and India. Their targeting strategy demonstrates a preference for high-value sectors including manufacturing, technology, healthcare, and financial services organizations. Given the group's recent emergence and limited public documentation from established threat intelligence sources such as CISA, FBI, or major security research firms, specific details regarding their country of origin, operational structure, attack methodologies, encryption techniques, and whether they employ ransomware-as-a-service models remain unclear. The relatively high victim count of 267 in a short operational timeframe since September 2025 suggests either an aggressive campaign pace or potential inflation of victim numbers through affiliate operations, though without corroborating intelligence reports, the group's exact operational capabilities and notable campaigns cannot be definitively established. Current intelligence indicates the group remains active as of late 2025, though comprehensive threat profiling requires additional validated reporting from authoritative cybersecurity sources. The group has been linked to 724 public disclosures across our corpus. First observed on a leak site on September 9, 2025; most recent post August 7, 2026. The operation is currently active.

Also tracked as: the gentlemen.

Timeline of this disclosure

August 7, 2026Hst listed by thegentlemenon the group's public leak site

Other recent disclosures by thegentlemen

thegentlemen has been linked to 724 public victims on Darkfield. A sample of the most recent:

See the full thegentlemen dossier →

Sector and geography

Geographically, Hst is reported in United States, a country with 3,159 ransomware disclosures in our corpus.

If your organisation is affected

A listing by thegentlemen means Hst 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 thegentlemen'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.