high severity July 12, 2025 · 3 min read Unverified claim — what this is

Ensemble Montplaisir Listed by Nova Ransomware Group

If you are a customer of Ensemble Montplaisir, here’s what is being claimed, and what it would mean for you.

Le CFP dispense des formations tertiaires longues (BTS en alternance) et des formations courtes pour adultes. LISTM propose des for...
— from Nova’s own leak-site posting. This is the group’s claim, quoted verbatim; it is not GalaxyWarden’s reporting and has not been independently verified.

Ensemble Montplaisir Listed by Nova Ransomware Group

On July 12, 2025, the nova Ransomware Group added Ensemble Montplaisir to its public leak site, claiming that internal files had been exfiltrated from the French educational organization.

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What Public Reporting Shows

Public reporting indicates that Ensemble Montplaisir, which operates as Le CFP and LISTM, provides long tertiary training programs including BTS degrees in alternation and short professional courses for adults. The nova group claims to have stolen internal documents during a ransomware incident. No exact number of individuals affected has been disclosed, and the precise volume or sensitivity of the files remains unclear from available reporting. The listing appeared on the group's onion site, which is tracked by ransomware monitoring services such as ransomware.live.

July 12, 2025 marks the public confirmation of the breach on the leak portal. The data exposed consists of internal files rather than a structured database of customer records, though such documents frequently contain personal information about students, staff, and partners in the education sector.

Why This Matters for You and Your Family

When an organization that handles training registrations, student records, or adult education files is breached, the information inside can include names, addresses, dates of birth, contact details, and sometimes financial or employment data. If you or any member of your family has taken courses through Ensemble Montplaisir or similar institutions, your information may now sit in an attacker-controlled archive. Once files leave the victim's network, there is no reliable way to retrieve every copy.

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value redacted in this sampleage, relatives, address historySpokeo

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Report details & sourcing

Attributed to Nova · 180 incidents tracked →

Severity High the filing does not enumerate what was exposed

Disclosed July 12, 2025

Last reviewed August 8, 2026

Affected Unconfirmed

By GalaxyWarden Threat Research · Editorial & sourcing standards

Unverified claim — what this report is

This page documents a public listing on a ransomware/extortion group’s leak site, tracked via public threat-intelligence sources. A listing is the attacker’s claim. GalaxyWarden aggregates and reports such claims; we have not independently verified that a breach occurred, what data (if any) was taken, or the accuracy of anything the group asserts, and the named organisation has not necessarily confirmed the incident. Sections above describe what the listing shows and the group’s documented history — not verified findings about the named organisation. If you represent this organisation and believe anything here is inaccurate, tell us and we’ll review it promptly.

Editorial & sourcing policy

GalaxyWarden is a breach-monitoring service and news aggregator. We do not exfiltrate, host, purchase, or redistribute stolen data. Breach information is compiled from publicly accessible sources and threat-intelligence platforms, and is reported as claims attributed to their source. We promptly correct or remove material shown to be inaccurate — see our content & takedown policy or write to support@galaxywarden.com.

Threat-actor tracker

Nova — 180 incidents tracked

Every breach we've attributed to Nova, in one running log. See who else they've hit →

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