Marlborough Partners
bd_e6cc3f355ed8ae54 · schema v1 · pii pii-v1
Full breach record for Marlborough Partners →Threat-actor claim — not a regulatory filing
This row is a claim by the ransomware group Leakbazaar 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
Marlborough Partners is a leading capital solutions advisor in Europe, providing independent and conflict-free advice to private equity, corporate, and public clients. With a strong track record, the firm has raised over €56 billion across 373 transactions, offering a wide range of advisory services including capital raising, financial modeling, and capital structuring. Their expertise spans various financing products, catering to diverse capital structure situations. Operating from four European offices, Marlborough Partners is recognized for its client-focused approach and extensive industry experience 1. BUYBACK (9 Mb) - $200 one hand / $100 many hands. 2. CALCULATION COST OF PRODUCTION (15 Gb) - $5 000 one hand / $2 500 many hands. 3. CONFIDENTIAL DATA (366 Gb) - $20 000 one hand / $10 000 many hands. 4. DIVIDENDS (41 Mb) - $200 one hand / $100 many hands. 5. FINANCE (26.5 Gb) - $10 000 one hand / $5 000 many hands. 6. GUIDANCE (300 Gb) - $10 000 one hand / $5 000 many hands. 7. INSURANCE (131 Mb) - $ 1000 one hand / $500 many hands. 8. MERGERS AND ACQUISITIONS (2.3 Gb) - $500 one hand / $250 many hands. 9. ORGANIZATION (1.2 Gb) - $1 000 one hand / $500 many hands. 10. POSSIBLE VIOLATIONS (151 Mb) - $1 000 one hand / $500 many hands. 11. QUARTERLY REPORTS (25 Gb) - $3 000 one hand / $1 500 many hands. 12. RESEARCH REPORTS (25 Gb) - $1 000 one hand / $500 many hands. 13. SANCTIONS (283 Mb) - $3 000 one hand / $1 500 many hands. 14. SECURITY REPORTS (3 Gb) - $3 000 one hand / $1 500 many hands. 15. SUPPLIERS BUYERS (2.4 Gb) - $1 000 one hand / $500 many hands.
Source provenance
- Source URL
- https://www.ransomware.live/id/TWFybGJvcm91Z2ggUGFydG5lcnNATGVha0JhemFhcg==
DisclosureLens links to the originating regulator URL — full filing bodies are not redistributed from public surfaces (§4.5).
- Filed at
- May 7, 2026
- Raw hash
- 8342d3b07857d66d2b0aa38988feb7a4408678886b282bd88c7e4e4091606da7
Reporting entity
- Name
- LeakBazaarnorm: leakbazaar
Victim entity
- Name
- Marlborough Partnersnorm: marlborough partners
- Domain
- marlboroughpartners.com
- Industry
- Financial Servicesllm
What this source establishes
- Source ceiling
- A leak-site claim can't tell us: discovery date · materiality · notification · affected count · confirmed data types · compliance clock. These stay blank until a regulatory filing or victim disclosure lands.
- Attack vector
- Ransomware· leakbazaar
- Threat actor
- LeakbazaarExternalFinancial
Compliance
- Compliance flags
- — (clock not assessable for this source)
Extraction provenance
- Status
- No extraction artifact recorded for this disclosure.