Victim Claim
groupe-mbm.com
Claimed by
lockbit5
Listed on leak site
11 Jun 2026
Reported attack date
27 Apr 2026
Group claims tracked
103
Unverified claim.
This entry reproduces a listing published by the lockbit5 group on its own extortion site.
Attackers routinely exaggerate or fabricate victims. Nothing here confirms that
groupe-mbm.com suffered a breach, or what data was actually taken.
About the organisation
Groupe MBM is a French group of companies specializing in carpentry, interior finishing, and interio...
What the listing means
groupe-mbm.com appeared on the lockbit5 leak site on 11 June 2026. Groups publish a victim once negotiations stall or as pressure during them, so a listing usually means data was already exfiltrated โ the attack itself is dated 27 April 2026, 45 days before the listing. This group has not published new claims in the last 30 days.
Recommended actions
- Treat any unsolicited message referencing groupe-mbm.com as suspicious โ leaked data gets weaponised for phishing within days.
- If you hold an account on groupe-mbm.com, change that password now, update it anywhere you reused it, and enable two-factor authentication.
- Other Manufacturing 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 โ check the organisation's own disclosures before acting on it.
Leak-site evidence
Listing URL https://www.ransomware.live/id/Z3JvdXBlLW1ibS5jb21AbG9ja2JpdDU=
Show leak-site screenshot
Captured from the group's extortion site. It may contain the victim's data or the attacker's messaging.
