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Apexus

listed as apexus.com · Claimed by Threeam · listed 6 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedSep 28, 2026
  2. Data leakeddate unknown

At a glance

Group
Threeam
Status
Data leaked
Country
United States
Sector
Technology
Listed on leak site
Sep 28, 2026

About the victim

AI dossier — public-source company profile

Apexus is the HRSA-designated Prime Vendor for the 340B Drug Pricing Program, a federal initiative that allows eligible healthcare entities to obtain discounted medications. The company provides education, compliance support, refund services, and technical assistance to 340B stakeholders, and also offers professional certification programs and fellowship opportunities in health-system pharmacy.

Industry
Healthcare Services & Pharmaceutical Program Management
Founded
2007

Attack summary

Severity: medium — Data has been published and the breach is confirmed (disclosed status: data_published), but no proof files, data inventory, or specific sensitive information types are detailed in the leak post. Apexus handles healthcare program administration and may hold PII/PHI related to 340B participants, but without confirmation of exfiltration scope or content, severity cannot be raised to high.

The threeam group claims to have breached Apexus and published data. The leak post does not specify what data was exfiltrated, whether encryption occurred, or what categories of information are at risk.

medium

What the group claims

Apexus, founded in 2007, is a business services company that manages the 340B Prime Vendor Program supporting the 340B Drug Pricing Program. The company negotiates pricing discounts with pharmaceutical manufacturers, provides educational resources

Sources

Source

Indexed 6 hours 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 99 public disclosures across our corpus. First observed on a leak site on September 14, 2023; most recent post September 28, 2026. The operation is currently inactive.

Timeline of this disclosure

  • September 28, 2026apexus.com listed by Threeam on the group's public leak site

Other recent disclosures by Threeam

Threeam has been linked to 99 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 Technology sector, which has 3,579 disclosures indexed across all operators we track. Geographically, apexus.com is reported in United States, a country with 3,167 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Threeam means apexus.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.