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tnmed.org

Claimed by Lockbit5 · listed 2 hours ago

Today
Age
since listed · data leaked

Status timeline

  1. ListedAug 28, 2026
  2. Data leakeddate unknown

At a glance

Group
Lockbit5
Status
Data leaked
Country
Tunisia
Sector
Healthcare
Listed on leak site
Aug 28, 2026

About the victim

AI dossier — public-source company profile

The Tennessee Medical Association is a nonprofit organization that advocates for physicians in Tennessee. It serves as a professional membership body for medical practitioners in the state.

Industry
Healthcare – Professional Medical Association

Attack summary

Severity: medium — Data has been published by the threat actor (disclosed status: data_published), indicating exfiltration; however, the nature and sensitivity of the data are not clearly specified in the available excerpt. A healthcare professional association may hold member information and institutional records of moderate sensitivity.

LockBit5 claims to have conducted an attack on the Tennessee Medical Association. The group has published data, but the specific details of what was encrypted, exfiltrated, or both remain unclear from the truncated leak post.

medium

What the group claims

The Tennessee Medical Association is a nonprofit organization that advocates for physicians in Tenne...

Sources

Source

Indexed 2 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 lockbit5

Based on the provided data, LockBit5 appears to be a recently emerged ransomware operation first observed in December 2025, representing what may be a new iteration or rebrand within the LockBit ransomware ecosystem, with primary financial motivations evidenced by their targeting of high-value sectors. Given the LockBit naming convention and the timing of emergence, this group likely operates from Eastern Europe or Russia and may represent either a continuation of previous LockBit operations or a new affiliate group leveraging the established LockBit brand, though specific organizational details remain undocumented by major security agencies. While detailed attack methodologies have not been publicly documented by CISA, FBI, or major security researchers, the group's targeting pattern across 157 victims suggests a broad-spectrum approach focusing on technology, manufacturing, healthcare, and transportation sectors primarily in the United States, Brazil, Germany, Italy, and Mexico. Due to the group's recent emergence in December 2025, there are no publicly documented notable campaigns or major incidents reported by established threat intelligence sources, though the victim count indicates active operations. The group appears to be currently active based on the recent first observation date, though comprehensive analysis from major security agencies has not yet been published given the short timeframe since emergence. The group has been linked to 344 public disclosures across our corpus. First observed on a leak site on December 7, 2025; most recent post August 28, 2026. The operation is currently active.

Timeline of this disclosure

  • August 28, 2026tnmed.org listed by lockbit5on the group's public leak site

Other recent disclosures by lockbit5

lockbit5 has been linked to 344 public victims on Darkfield. A sample of the most recent:

See the full lockbit5 dossier →

Sector and geography

This disclosure adds to ransomware activity in the Healthcare sector, which has 2,608 disclosures indexed across all operators we track. Geographically, tnmed.org is reported in Tunisia, a country with 21 ransomware disclosures in our corpus.

If your organisation is affected

A listing by lockbit5 means tnmed.org 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.
  • Monitor for the data appearing on lockbit5'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.