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.
Attackers are actively exploiting an RCE flaw in Windows PHP-CGI implementations to target Japanese firms, deploying Cobalt Strike for persistence
CISA has added five more CVEs into its known exploited vulnerabilities catalog
Phishing attack exploits social engineering techniques alongside Microsoft Teams and remote access software to deploy BackConnect malware
A new phishing campaign has been identified using Havoc to control infected systems, leveraging SharePoint and Microsoft Graph API