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.
Researchers have discovered multiple npm packages named after NodeJS libraries that even pack a Windows executable that resembles NodeJS but instead drops a sinister trojan. [...]
Researchers have discovered multiple npm packages named after NodeJS libraries that even pack a Windows executable that resembles NodeJS but instead drops a sinister trojan. [...]
The notorious cybercrime group known as FIN7 has been observed deploying Cl0p (aka Clop) ransomware, marking the threat actor's first ransomware campaign since late 2021
A financially motivated cybercriminal group known as FIN7 resurfaced last month, with Microsoft threat analysts linking it to attacks where the end goal was the deployment of Clop ransomware payloads on victims' networks. [...]
The company's systems currently detect and investigate an average of 156,000 BEC attacks daily
Microsoft has decided to allow customers to choose when the last bits of Internet Explorer 11 (IE11) will be removed from their devices. [...]
Certificate-based authentication comes first and phones last Microsoft wants to take the decision of which multi-factor authentication (MFA) method to use out of the users' hands and into its own.…
Cybercrime group that often uses smishing for initial access bypassed traditional OS targeting and evasion techniques to directly gain access to the cloud.
Microsoft has pulled a recent Microsoft Defender update that was supposed to fix a known issue triggering persistent restart alerts and Windows Security warnings that Local Security Authority (LSA) Protection is off. [...]
It's as they say: A Teams is only as strong as its weakest links. Microsoft's collaboration platform offers Tabs, Meetings, and Messages functions, and they all can be exploited.
Cybercriminals are starting to target Microsoft's VSCode Marketplace, uploading three malicious Visual Studio extensions that Windows developers downloaded 46,600 times. [...]
The abuse methods require pre-existing access to a compromised user account or Teams token
In part three of this three-part series, Microsoft dissects these twinned threats and what organizations can do to reduce or eliminate their risk.
A financially motivated cyber actor has been observed abusing Microsoft Azure Serial Console on virtual machines (VMs) to install third-party remote management tools within compromised environments
A financially motivated cybergang tracked by Mandiant as 'UNC3944' is using phishing and SIM swapping attacks to hijack Microsoft Azure admin accounts and gain access to virtual machines. [...]
Microsoft is investigating major speed issues affecting L2TP/IPsec VPN connections after installing recent Windows 11 updates. [...]
Google has added support for more scripting languages to VirusTotal Code Insight, a recently introduced artificial intelligence-based code analysis feature. [...]
Microsoft blocking 'net scripts sparked 'monumental shift' in attacks Microsoft's decision to block internet-sourced macros by default last year is forcing attackers to find new and creative ways to compromise systems and deliver malware, according to threat researchers at Proofpoint.…
A two-bit comedian is using a patched Microsoft vulnerability to attack the hospitality industry, and really laying it on thick along the way.
A predictable patch cadence is nice, but the software giant can do more.