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.
Russian military intelligence-linked hackers are using a new malware called “Authentic Antics” to secretly access Microsoft cloud email accounts, the UK's NCSC reports
Ukraine’s CERT-UA has identified a new AI-powered malware, dubbed “LameHug,” which executes commands on compromised Windows systems in cyber-attacks, targeting the nation’s security and defense sector
Microsoft has reported Scattered Spider continues to evolve tactics to compromise both on-premises infrastructure and cloud environments
The NCSC has warned that there are still a significant number of organizations using Windows 10, which will soon be unsupported with security updates