Colliers
thegentlemenThis record tracks a ransomware attack claimed by the thegentlemen group against Colliers. It collects the publicly disclosed attack details — sector, location and timeline — as published on the operator's leak site and indexed by Breach House.
Window Zero
EXPOSURE GAPWindow Zero is the time the breach stayed in the open before anyone said so — the gap between when the attack was first discovered on the operator's leak site (t1) and when it was publicly disclosed (t2). The wider this window, the longer victims, staff and customers were exposed with no warning.
Attack Summary
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.
Leak Screenshots
SAMPLEProof-of-breach screenshots the operator posted from the stolen data. Previews are redacted and locked — the originals are available on HaveIBeenRansom.