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.
Innocuous little Windows programs were carrying cheap malware for weeks, exposing customers of the India-based software vendor to data theft.
Microsoft has revealed two security flaws in Rockwell Automation PanelView Plus that could be weaponized by remote, unauthenticated attackers to execute arbitrary code and trigger a denial-of-service (DoS) condition
The vulnerabilities stem from manipulable custom classes in PanelView Plus
Unknown threat actors have been observed exploiting a now-patched security flaw in Microsoft MSHTML to deliver a surveillance tool called MerkSpy as part of a campaign primarily targeting users in Canada, India, Poland, and the U.S
Adversary-in-the-middle attacks can strip out the passkey option from login pages that users see, leaving targets with only authentication choices that force them to give up credentials.
Fake IT support sites promote malicious PowerShell "fixes" for common Windows errors, like the 0x80070643 error, to infect devices with information-stealing malware. [...]