Colliers
bd_5334f15d3ff2c201 · schema v1 · pii pii-v1
Full breach record for Colliers →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
Stock Symbol CIGI Revenue $5.2 Billion colliers.com https://www.zoominfo.com/c/colliers-international-group-inc/12042840 Colliers International Group Inc. provides commercial real estate services to corporations, financial institutions, governments, and individuals worldwide. The companys Sales and Lease Brokerage division offers transaction brokerage services, including landlord representation, tenant representation, and capital markets and investment services, as well as property management, leasing, and valuations. This division provides its services for various asset classes, including office, industrial, retail, multi-family, hotel, and mixed-use properties. Its Outsourcing & Advisory Services division offers portfolio management, transaction and project management, workplace solutions, strategic consulting, property and asset management, and other corporate real estate services, as well as lease administration and facilities management systems; and valuation and appraisal review and management, portfolio or single asset valuation, arbitration and consulting, various studies, tax appeals etc.
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Incident timeline — mostly unverified
? — ?
Breach window unknown
Feb 19, 2025
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.