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JMS Southeast, Inc.

listed as JMS Southeast · Claimed by Akira · listed 8 days ago

8d
Age
since listed · data leaked

Status timeline

  1. ListedJun 25, 2026
  2. Data leakeddate unknown

At a glance

Group
Akira
Status
Data leaked
Sector
Business Services
Listed on leak site
Jun 25, 2026

About the victim

AI dossier — public-source company profile

JMS Southeast, Inc. manufactures high-quality temperature measurement and control products including thermocouples, RTDs, thermowells, and transmitters. The company serves aerospace, pharmaceuticals, and oil and gas industries.

Industry
Instrumentation & Temperature Control Manufacturing

Attack summary

Severity: critical — Confirmed exfiltration of large-scale sensitive data including employee PII, payment details, customer information, and government agreements across regulated industries (aerospace, pharmaceuticals, oil & gas).

Akira ransomware group claims to have exfiltrated approximately 25 GB of corporate data including employee personal information, payment details, NDAs, contracts, government agreements, and customer information.

critical

Data the group says was taken

AI dossier — extracted from the leak post
  • Employee personal information (names, addresses)
  • Payment details
  • NDAs
  • Project documentation
  • Contracts and agreements
  • Government agreements
  • Customer information

What the group claims

JMS Southeast, Inc. specializes in high-quality temperature measurement and control products, i ncluding thermocouples, RTDs, thermowells, and transmitters, catering to various industries suc h as aerospace, pharmaceuticals, and oil and gas. We will upload 25gb of corporate data soon. Employee personal information (name, addresses and so on), payment details, NDAs, projects, contracts and agreements, agreements with government, customer information and so on.

Source

Indexed 8 days 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 Akira

Akira is a ransomware group that emerged in April 2023, operating with primarily financial motivations and has rapidly established itself as a significant threat actor with over 1,500 documented victims. The group's country of origin remains unclear, though they operate as a Ransomware-as-a-Service (RaaS) model, recruiting affiliates to conduct attacks while the core group maintains the ransomware infrastructure and negotiation processes. Akira employs multi-faceted attack methodologies including exploitation of VPN vulnerabilities, particularly targeting Cisco VPN appliances, and utilizes living-off-the-land techniques along with legitimate administrative tools to avoid detection, while implementing double extortion tactics by exfiltrating sensitive data before deploying their encryption payload. The group has demonstrated a preference for targeting organizations in the United States, Canada, Germany, United Kingdom, and Italy, with a particular focus on manufacturing, business services, technology, and construction sectors, though they have shown willingness to attack various industries. Despite being relatively new to the ransomware landscape, Akira has maintained consistent operations throughout 2023 and into 2024, with law enforcement agencies including CISA and FBI issuing advisories about their activities, though no major disruption operations have been publicly reported against the group as of late 2024. The group has been linked to 1,663 public disclosures across our corpus. First observed on a leak site on April 26, 2023; most recent post July 1, 2026. The operation is currently active.

Also tracked as: Megazord.

Timeline of this disclosure

  • June 25, 2026JMS Southeast listed by Akiraon the group's public leak site

Other recent disclosures by Akira

Akira has been linked to 1,663 public victims on Darkfield. A sample of the most recent:

See the full Akira dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track.

If your organisation is affected

A listing by Akira means JMS Southeast 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 Akira'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.