On February 5, 2026, the Canadian company InfoMontréal appeared on the leak site of the sinobi ransomware group, with internal files reportedly exfiltrated during a ransomware attack now publicly listed for anyone to download.
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What Public Reporting Shows
Public reporting indicates that sinobi posted details of the InfoMontréal breach on its dark web leak site. The listing includes exfiltrated internal files, though the exact volume of data and the specific number of people affected remain undisclosed. InfoMontréal provides business services in the Montreal area; the company has not yet issued a public statement confirming the incident. The ransomware group typically uses these postings to pressure victims into payment after initial encryption and data theft.
Why This Matters for You and Your Family
When a company that handles business records or client information is breached, the ripple effects often reach ordinary people. Your name, address, phone number, email, or financial details may sit inside those internal files even if you never directly signed up with InfoMontréal. Once that information leaves a corporate network, it can be sold, traded, or used to target you with identity theft, phishing, or harassment. For families, a single exposed record can link parents and children through shared addresses or phone numbers, multiplying the risk.
The Doxxing and Identity-Chain Implications
Ransomware leaks like this one frequently serve as the starting point for larger doxxing campaigns. Attackers combine the newly released corporate files with data from earlier breaches to build detailed profiles. A work email from the InfoMontréal files can be matched to a personal account, a gaming username, or a child’s online handle. These connections create an identity chain that lets criminals move from one account to the next. Credential leaks of this nature often cascade into account takeovers on gaming platforms, social media, and email, exposing your family’s private conversations, locations, and photographs.