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Colliers International

listed as Colliers Real Estate · Claimed by Coinbasecartel · listed 9 days ago

9d
Age
since listed · data leaked

Status timeline

  1. ListedJul 20, 2026
  2. Data leakeddate unknown

At a glance

Group
Coinbasecartel
Status
Data leaked
Country
United States
Sector
Business Services
Listed on leak site
Jul 20, 2026

About the victim

AI dossier — public-source company profile

Colliers International is a global commercial real estate services firm headquartered in Toronto, Canada, operating in more than 60 countries. The company provides property management, investment sales, leasing, valuation, and advisory services to corporate, institutional, and private clients across office, industrial, retail, and residential property sectors.

Industry
Commercial Real Estate Services
Address
Toronto, Canada

Attack summary

Severity: low — No proof files, screenshots, or data samples are referenced in the available post excerpt. No specific data types or scale are disclosed. The claim lacks substantiation.

The coinbasecartel group claims to have accessed Colliers International's systems and published data. The post does not specify whether encryption or exfiltration occurred, or provide details of the attack methodology.

low

Original description

AI-summarised, not from the leak post

Colliers International is a global commercial real estate services company headquartered in Toronto, Canada. It operates across more than 60 countries, offering services including property management, investment sales, leasing, valuation, and advisory. The firm serves corporate, institutional, and private clients across office, industrial, retail, and residential property sectors, making it one of the largest real estate services firms worldwide.

Sources

Source

Indexed 9 days ago

This page surfaces a public ransomware disclosure indexed by Darkfield. Original posts come from the operator's own leak site; we cross-check against ransomware.live, RansomLook and RansomWatch where applicable. Share this URL freely.

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Disclosure context

About coinbasecartel

CoinbaseCartel is a ransomware group that emerged in September 2025 with financially motivated operations targeting organizations across multiple sectors and geographic regions. The group has demonstrated significant activity in a short timeframe, compromising at least 102 known victims primarily across the United States, United Arab Emirates, Germany, Canada, and Brazil. Their targeting patterns show a preference for technology companies, financial services organizations, manufacturing entities, and consumer services businesses, suggesting an opportunistic approach focused on organizations likely to have both valuable data and the financial resources to pay ransoms. Given the group's recent emergence and limited public documentation from established threat intelligence sources, details regarding their specific attack methodologies, infrastructure, and organizational structure remain largely unconfirmed by major cybersecurity firms or law enforcement agencies. The group appears to maintain active operations as of late 2025, though comprehensive analysis of their tactics, techniques, and procedures awaits further investigation and reporting by established threat intelligence organizations. The group has been linked to 192 public disclosures across our corpus. First observed on a leak site on September 15, 2025; most recent post July 28, 2026. The operation is currently active.

Also tracked as: coinbase cartel.

Timeline of this disclosure

  • July 20, 2026Colliers Real Estate listed by coinbasecartelon the group's public leak site

Other recent disclosures by coinbasecartel

coinbasecartel has been linked to 192 public victims on Darkfield. A sample of the most recent:

See the full coinbasecartel dossier →

Sector and geography

This disclosure adds to ransomware activity in the Business Services sector, which has 3,796 disclosures indexed across all operators we track. Geographically, Colliers Real Estate is reported in United States, a country with 3,138 ransomware disclosures in our corpus.

If your organisation is affected

A listing by coinbasecartel means Colliers Real Estate appeared on a ransomware extortion site and data attributed to it has been published. If this is your organisation, or a supplier you depend on, the priority is to confirm the intrusion and contain it before the window to act closes.

  • Engage your incident-response team and preserve forensic evidence before remediating — do not wipe affected systems first.
  • Force a password reset and revoke active sessions for exposed accounts; rotate any credentials, API keys or certificates that may have been in the stolen data.
  • Assess regulatory notification duties (GDPR, NIS2, sector regulators) — many carry a 72-hour reporting clock from awareness.
  • Report the incident to your national CERT, CISA (United States), as required for your jurisdiction.
  • Monitor for the data appearing on coinbasecartel's leak site and across paste and breach channels, and brief downstream partners who may be exposed through you.

How we know this. Darkfield monitors public ransomware leak sites continuously, archiving every new disclosure and the data later released against the victim. Each entry on this page is sourced from the operator's own publication and cross-checked against complementary OSINT feeds (RansomLook, ransomware.live, RansomWatch). We do not collect or host stolen data — only the metadata, timestamps and screenshots needed to make the public disclosure searchable and accountable. Records here are corrected when the original post is edited, retracted, or merged with another disclosure.