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Marlborough Partners

LeakBazaar

This record tracks a ransomware attack claimed by the LeakBazaar group against Marlborough Partners. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.

Country
United Kingdom
Business Category
Finance / Legal / Insurance
Employees
51-100
Discovered
2026-05-10
Published
May 07, 2026
Victim ID
Tdd1g7gKPHki

Attack Summary

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.

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