MBM
bd_44c45c80805a956a · schema v1 · pii pii-v1
Full breach record for MBM →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Thegentlemen on its public extortion blog. It has not been validated by the victim or any regulator. Treat attribution and counts as the threat actor's assertion until a regulatory filing or victim disclosure corroborates them.
Source: Ransomware.live
Post text · scraped from the leak site
https://mbm.edu.pl MBM is a Polish company specializing in professional training, compliance support, and implementation of mandatory procedures for both public institutions and private organizations across the country. They have over eight years of experience delivering vocational training, advisory services, audits, and ready‐to‐use documentation tailored to legal requirements, particularly in areas such as data protection and workplace obligations. Their services include courses on personal data protection and assistance in meeting the requirements of current data privacy laws, helping clients align with GDPR‐related duties and other legal obligations concerning handling and safeguarding personal information.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Jan 11, 2026
Claim posted
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No filing yet · watching
Compliance clocks stay unassessable until a regulatory filing lands. Dashed segments fill in automatically when corroboration arrives.
Claim → filing
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Compliance clock
Not assessable
Evidence ladder
Attacker assertion only. Establishes: claim date, group, alleged victim.
Unlocks: incident narrative, operational impact. Still no compliance clock.
Unlocks: discovery date, data types, affected count, compliance clock.
Unlocks: materiality, stated response, full audit trail. Ceiling removed.
No regulatory filing corroborates this yet — it is the attacker's own assertion. Watch this entity to be notified the moment a filing corroborates or contradicts it.
Source ceiling
- actor name
- victim claim
- ransom/leak status
- discovery date
- materiality
- notification
- affected count
- confirmed data types
- compliance clock
The ✕ fields stay blank until a regulatory filing or victim disclosure lands.
thegentlemen
According to ransomware.live, The Gentlemen is a RaaS group that emerged in July–August 2025, rapidly claiming over 320 victims across 17+ countries by offering affiliates a 90% revenue share, deploying a Go-based locker against Windows, Linux, NAS, and BSD systems; a compromised C2 server in 2026 revealed more than 1,570 linked victims.