Microsoft software and cloud platforms underpin enterprise systems, so vulnerabilities and security advisories can affect identity, data, and operations.
Search across headline titles and summaries.
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.
MAPP program to blame? A week after Microsoft told the world that its July software updates didn't fully fix a couple of bugs, which allowed miscreants to take over on-premises SharePoint servers and remotely execute code, researchers have assembled much of the puzzle — with one big missing piece.…
Microsoft is investigating an ongoing outage blocking Microsoft 365 administrators with business or enterprise subscriptions from accessing the admin center. [...]
Under oath in French Senate, exec says it would be compelled – however unlikely – to pass local customer info to US admin Microsoft says it "cannot guarantee" data sovereignty to customers in France – and by implication the wider European Union – should the Trump administration demand access to customer information held on its servers.…
Threat hunters have disclosed two different malware campaigns that have targeted vulnerabilities and misconfigurations across cloud environments to deliver cryptocurrency miners
Microsoft has removed a compatibility hold that prevented some Easy Anti-Cheat users from installing the Windows 11 2024 Update because of a known issue that triggers restarts with blue screen of death (BSOD) errors. [...]
Let the games begin Ransomware has officially entered the Microsoft SharePoint exploitation ring.…
Some coyotes hunt squirrels, this one hunts users' financial apps A new variant of the Coyote banking trojan abuses Microsoft's UI Automation (UIA), making it the first reported malware to use UIA for credential theft.…
Microsoft said Chinese actor Storm-2603 is deploying Warlock ransomware following the exploitation of vulnerabilities in on-prem SharePoint systems
Microsoft has revealed that one of the threat actors behind the active exploitation of SharePoint flaws is deploying Warlock ransomware on targeted systems
The "is" package was infected with cross-platform malware after a scam targeting maintainers The popular npm package "is" was infected with cross-platform malware, around the same time that linting utility packages used with the prettier code formatter were infected with Windows-only malware.…
A Chinese hacking group is deploying Warlock ransomware on Microsoft SharePoint servers vulnerable to widespread attacks targeting the recently patched ToolShell zero-day exploit chain. [...]
Brave Software says its privacy-focused browser will block Microsoft's Windows Recall from capturing screenshots of Brave windows by default to protect users' privacy. [...]
It's the first known instance of malware that abuses the UIA framework and has enabled dozens of attacks against banks and crypto exchanges in Brazil.
No screenshots for you! In an effort to protect user privacy, Brave browser 1.81 will prevent Microsoft Recall from screenshotting it by default.…
US DOE among breached government agencies More than 400 organizations have been compromised in the Microsoft SharePoint attack, according to Eye Security, which initially sounded the alarm on the mass exploitation last Friday, even before Redmond confirmed the critical vulnerabilities.…
Threat actors are piling on the zero-day vulnerabilities in SharePoint, including at least three Chinese nation-state cyberespionage groups.
Over 400 Organizations Breached Via Ongoing ToolShell Attacks, Researchers WarnThe U.S. government agency that maintains and designs America's nuclear weapons was reportedly breached by attackers exploiting zero-day flaws in on-premises Microsoft SharePoint servers, with researchers now counting over 400 victims, including European and Middle Eastern governments.
Unknown threat actors have breached the National Nuclear Security Administration's network in attacks exploiting a recently patched Microsoft SharePoint zero-day vulnerability chain. [...]
Unknown threat actors have reportedly breached the National Nuclear Security Administration's (NNSA) network in attacks exploiting a recently patched Microsoft SharePoint zero-day vulnerability chain. [...]
Total Recall: Capturing everything you do on your PC screen to become a 'true companion' Microsoft is again throwing AI at Windows 11 to see what sticks, releasing features including the even more eyebrow-raising successor to its controversial Recall, a screen-streaming remotely processed backseat driver dubbed Copilot Vision.…