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 financially motivated threat actor tracked as Storm-2755 is stealing Canadian employees' salary payments after hijacking their accounts in payroll pirate attacks. [...]
Threat actors using a previously undocumented phishing-as-a-service (PhaaS) platform called "VENOM" are targeting credentials of C-suite executives across multiple industries. [...]
Google has rolled out Device Bound Session Credentials (DBSC) protection in Chrome 146 for Windows, designed to block info-stealing malware from harvesting session cookies. [...]
Microsoft has suspended developer accounts used to maintain multiple high-profile open-source projects without proper notification and no way to quickly reinstate them, effectively blocking them from publishing new software builds and security patches for Windows users. [...]
Microsoft has pushed a server-side fix for a known issue that broke the Windows Start Menu search feature on some Windows 11 23H2 devices. [...]
An international operation from law enforcement authorities in partnership with private companies has disrupted FrostArmada, an APT28 campaign hijacking local traffic from MikroTik and TP-Link routers to steal Microsoft account credentials. [...]
Exploit code has been released for an unpatched Windows privilege escalation flaw reported privately to Microsoft, allowing attackers to gain SYSTEM or elevated administrator permissions. [...]
Microsoft has resolved a known issue that was preventing some Classic Outlook users from sending emails via Outlook.com. [...]
Microsoft has deprecated and removed the Support and Recovery Assistant (SaRA) command-line utility from all in-support versions of Windows updates starting March 10. [...]
Microsoft says that Storm-1175, a China-based financially motivated cybercriminal group known for deploying Medusa ransomware payloads, has been deploying n-day and zero-day exploits in high-velocity attacks. [...]