Skip to main content
Darkfield

Ransomware victim disclosure

← All victims

CESI

Claimed by Termite · listed 1 year ago

300 GB
Data size
000 files records
17m
Age
since listed · data leaked

Status timeline

  1. ListedFeb 11, 2025
  2. Data leakeddate unknown

At a glance

Group
Termite
Status
Data leaked
Country
France
Listed on leak site
Feb 11, 2025
Data size
300 GB
Records
000 files

About the victim

AI dossier — public-source company profile

CESI is a French engineering school (École d'Ingénieurs) offering accredited engineering diplomas, bachelor degrees, specialized master's programs, and executive education across 24+ campuses nationwide. The institution provides programs ranging from bac+2 (technician level) to bac+8 (doctoral) in domains including civil engineering, IT, industry, HR, and sustainable development.

Industry
Higher Education & Engineering
Address
Multiple campuses across France (Dijon, Nancy, Reims, Strasbourg, Thionville, Paris, Orléans, Tours, Angoulême, Brest, Le Mans, La Rochelle, Nantes, Saint-Nazaire, Aix-en-Provence, Grenoble, Lyon, Nice, Bordeaux, Montpellier, Pau, Toulouse, Arras, Caen, Lille, Rouen)

Attack summary

Severity: high — Confirmed exfiltration of 300 GB from a major French educational institution with 24+ campuses serving thousands of students and staff. Educational data at scale, including potential student PII, institutional records, and research data, represents significant sensitivity and regulatory exposure (GDPR, French data protection laws).

The Termite group claims to have exfiltrated approximately 300 GB of data from CESI. No specific details about the nature of data or operational impact are provided in the leak post.

high

Data the group says was taken

AI dossier — extracted from the leak post
  • Student records
  • Faculty information
  • Administrative files
  • Institutional data

What the group claims

CESI is a private French higher education and vocational training group specialising in training engineers, managers, technicians and supervisors.

The leak post

captured from the group's site
```
[{"_id":"69e1671a786a0e50d7a6a887","title":"Millennium Dental Technologies","address":"https://www.lanap.com/","photos":["1b72bc1c085cbe73226e1d13904de51a.png","e774db75116b1628d17c1b8273c998e0.jpg","a52ed43bff287b7dd3d28884b3514b0a.jpg","4ac15bb80632c58a0ff6fd5a70b9f901.jpg","10deaea911310850bd3316df37bdaf01.jpg","3535a7ec8614dd8cf9e56f516f2f8b2c.jpg"],"description":"Founded in 1994 and Headquartered in Cerritos, California. Millennium Dental Technologies, Inc manufactures and distributes dental products. It offers PerioLase MVP-7, a laser designed especially for laser periodontal therapy that performs soft and hard tissue laser procedures.\n","extraInfo":"http://y4bdg56uaznmbptf7dgp5xn3sjyyh4qodqjrsbziqatnyapmiqqctgid.onion/lanap/\n","publishDate":"2026-04-16T22:46:01.000Z","viewersCount":882},{"_id":"69b89749c3aeb8d444653045","title":"Noll and Tam Architects","address":"https://www.nollandtam.com/","photos":["a0e8e82326bcdf54278bbef744453591.jpg"],"description":"Noll and Tam Architects specializes in creating innovative architectural designs that serve the common good. Their projects range from community centers and libraries to veterinary hospitals and e…

Screenshot of the leak post

Leak screenshot for CESI

Sources

Source

Indexed 1 year 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.

Is this your supplier? Your competitor? You?

Pro plans monitor your domain, corporate emails, and crypto wallets across every new ransomware leak-site post, breach dump and Telegram callout — alerts within 5 minutes.

Disclosure context

About Termite

Termite is a recently emerged ransomware group that first appeared in November 2024, operating with apparent financial motivations based on their targeting patterns across multiple high-value sectors. The group's origin and affiliations remain largely undocumented by major threat intelligence providers, though their targeting of primarily Western nations including the United States, France, United Kingdom, Germany, and Canada suggests a non-Western operational base. With 39 documented victims across healthcare, telecommunications, business services, and technology sectors within just a few months of operation, Termite demonstrates an aggressive deployment strategy, though specific details regarding their initial access vectors, encryption methodologies, and whether they employ double or triple extortion tactics have not been publicly documented by established security research organizations. The group's relatively recent emergence means that notable high-profile campaigns and specific technical indicators have not yet been extensively analyzed or reported by authoritative sources such as CISA, FBI, or major cybersecurity firms. Termite appears to remain active as of early 2025, though the limited public documentation suggests they may be a smaller-scale operation or have not yet attracted significant attention from major threat intelligence organizations. The group has been linked to 48 public disclosures across our corpus. First observed on a leak site on November 17, 2024; most recent post June 9, 2026. The operation is currently active.

Timeline of this disclosure

  • February 11, 2025CESI listed by Termiteon the group's public leak site
Data size
300 GB
Records
000 files

Other recent disclosures by Termite

Termite has been linked to 48 public victims on Darkfield. A sample of the most recent:

See the full Termite dossier →

Sector and geography

Geographically, CESI is reported in France, a country with 612 ransomware disclosures in our corpus.

If your organisation is affected

A listing by Termite means CESI 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, CERT-FR (France), as required for your jurisdiction.
  • Monitor for the data appearing on Termite'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.