JMS Southeast
About the organisation
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.
What the listing means
JMS Southeast appeared on the akira leak site on 25 June 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated. This group has published 21 claims in the last 30 days and remains active.
Recommended actions
- Treat any unsolicited message referencing JMS Southeast as suspicious — leaked data gets weaponised for phishing within days.
- If you hold an account on jms-se.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Business Services organisations should review this group's known TTPs and validate detection coverage against them.
- Watch for follow-on extortion: stolen data is often re-leaked or resold after the initial listing.
- A leak-site listing is a claim made by the attacker, not a confirmed breach — check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/Sk1TIFNvdXRoZWFzdEBha2lyYQ==