On July 20, 2026, Colliers Real Estate, a US-based business services organization, discovered a ransomware attack perpetrated by the Coinbase Cartel threat group. This incident is currently being tracked as a high-severity event on various breach trackers.
As of July 21, 2026, specific details regarding the number of affected individuals, the types of data exposed, and the US states impacted have not yet been disclosed. Regulatory filings and consumer notification letters typically follow weeks or months after discovery, upon determination of the scope of data loss.
Colliers International Group Inc. is publicly traded under the ticker TSX: CIGI. The company was a direct target of the ransomware attack and not a vendor affecting downstream customers. An ongoing investigation is underway to determine the full extent of the incident; therefore, information regarding specific data types and affected counts remains undisclosed.