Canada Cyber Centre
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Canada’s House of Commons Investigates Data Breach Tied to Reported Microsoft Vulnerability Exploitation
Canada’s House of Commons is investigating a data breach after a cyberattack reportedly exposed employee information. The Cyber Centre is assisting, and authorities caution that attribution remains complex. The incident comes as Canada and other nations grapple with recently disclosed Microsoft vulnerabilities, including CVE-2025-53770 (ToolShell) and CVE-2025-53786, which have seen active exploitation by various threat…