Microsoft software and cloud platforms underpin enterprise systems, so vulnerabilities and security advisories can affect identity, data, and operations.
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Background for this topic.
Microsoft is a technology company whose Windows, Microsoft 365, Azure, identity services, and developer tools form a widely deployed enterprise computing ecosystem. Its security relevance spans endpoint and server software, cloud control planes, authentication, collaboration data, and the update mechanisms used to maintain them.
Security news under this tag commonly concerns vulnerabilities requiring patching, exploits against exposed services, identity or token compromise, and misconfiguration of cloud permissions or authentication policies. Practitioners should verify affected versions and exposure, apply updates or mitigations, enforce multifactor authentication and least privilege, and monitor relevant audit logs. Incidents involving Microsoft-hosted identities or data may require rapid session and credential containment, investigation across cloud and on-premises systems, and assessment of privacy or regulatory obligations.
A newly identified hacking group named GhostRedirector has compromised 65 Windows servers using previously unknown tools
The backdoor is a sophisticated VBA-based malware targeting Microsoft Outlook
Silver Fox APT abuses Microsoft-signed drivers to kill antivirus and deploy ValleyRAT remote-access backdoor
The campaign shows APT29’s intentions to “cast a wider net in their intelligence collection efforts,” said Amazon