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868 result(s) for "Microsoft 365" — best match first.

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The security stories that matter, explained by our team — with the concrete steps to take.

Latest headlines from security outlets

Collected every two hours from specialised publications — each link leads to the original article.

The Hacker News
The Hacker News Breaches & leaks
Microsoft Uncovers 'Whisper Leak' Attack That Identifies AI Chat Topics in Encrypted Traffic

Microsoft has disclosed details of a novel side-channel attack targeting remote language models that could enable a passive adversary with capabilities to obse…

The Hacker News
The Hacker News Vulnerabilities
Microsoft Issues Emergency Patch for Actively Exploited Critical WSUS Vulnerability

Microsoft on Thursday released out-of-band security updates to patch a critical-severity Windows Server Update Service (WSUS) vulnerability with a proof-of-con…

Windows

The Hacker News
The Hacker News Breaches & leaks
Microsoft Links Storm-1175 to GoAnywhere Exploit Deploying Medusa Ransomware

Microsoft on Monday attributed a threat actor it tracks as Storm-1175 to the exploitation of a critical security flaw in Fortra GoAnywhere software to facilita…

The Hacker News
The Hacker News
Microsoft Expands Sentinel Into Agentic Security Platform With Unified Data Lake

Microsoft on Tuesday unveiled the expansion of its Sentinel Security Incidents and Event Management solution (SIEM) as a unified agentic platform with the gene…

The Hacker News
The Hacker News
Microsoft Flags AI-Driven Phishing: LLM-Crafted SVG Files Outsmart Email Security

Microsoft is calling attention to a new phishing campaign primarily aimed at U.S.-based organizations that has likely utilized code generated using large langu…

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities
Debian 11: PAM Important DoS and Access Risk CVE-2024-22365 DLA-4306-1

Multiple vulnerabilities were found in PAM namespace module used to configure private namespaces for user sessions. CVE-2024-22365

Linux

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles
Linux Secure Boot Safe Despite Upcoming Microsoft UEFI Key Expiry

Let's address what's happening head-on: Microsoft's third-party UEFI Certificate Authority (CA) key''responsible for signing shim bootloaders so Linux distribu…

Linux

The Hacker News
The Hacker News Vulnerabilities
Microsoft Discloses Exchange Server Flaw Enabling Silent Cloud Access in Hybrid Setups

Microsoft has released an advisory for a high-severity security flaw affecting on-premise versions of Exchange Server that could allow an attacker to gain elev…

Exchange

LinuxSecurity - Security Advisories
LinuxSecurity - Security Advisories Vulnerabilities
Fedora 41: Poppler Critical Patch for CVE-2025-32364 and CVE-2025-32365

This update fixes these CVEs: CVE-2025-32364 CVE-2025-32365 CVE-2024-56378

Linux

The Hacker News
The Hacker News
Microsoft Launches Project Ire to Autonomously Classify Malware Using AI Tools

Microsoft on Tuesday announced an autonomous artificial intelligence (AI) agent that can analyze and classify software without assistance in an effort to advan…

The Hacker News
The Hacker News Vulnerabilities
Microsoft Releases Urgent Patch for SharePoint RCE Flaw Exploited in Ongoing Cyber Attacks

Microsoft on Sunday released security patches for an actively exploited security flaw in SharePoint and also disclosed details of another vulnerability that it…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks
OneClik Malware Targets Energy Sector Using Microsoft ClickOnce and Golang Backdoors

Cybersecurity researchers have detailed a new campaign dubbed OneClik that leverages Microsoft's ClickOnce software deployment technology and bespoke Golang ba…

The Hacker News
The Hacker News Breaches & leaks
OneClik Red Team Campaign Targets Energy Sector Using Microsoft ClickOnce and Golang Backdoors

Cybersecurity researchers have detailed a new campaign dubbed OneClik that leverages Microsoft's ClickOnce software deployment technology and bespoke Golang ba…

The Hacker News
The Hacker News Vulnerabilities
nOAuth Vulnerability Still Affects 9% of Microsoft Entra SaaS Apps Two Years After Discovery

New research has uncovered continued risk from a known security weakness in Microsoft's Entra ID, potentially enabling malicious actors to achieve account take…

Microsoft 365

The Hacker News
The Hacker News
Microsoft Extends Windows 10 Security Updates for One Year with New Enrollment Options

Microsoft on Tuesday announced that it's extending Windows 10 Extended Security Updates (ESU) for an extra year by letting users either pay a small fee of $30 …

Windows

The Hacker News
The Hacker News Vulnerabilities
Microsoft Patches 67 Vulnerabilities Including WEBDAV Zero-Day Exploited in the Wild

Microsoft has released patches to fix 67 security flaws, including one zero-day bug in Web Distributed Authoring and Versioning (WebDAV) that it said has come …

The Hacker News
The Hacker News Vulnerabilities
Microsoft OneDrive File Picker Flaw Grants Apps Full Cloud Access — Even When Uploading Just One File

Cybersecurity researchers have discovered a security flaw in Microsoft's OneDrive File Picker that, if successfully exploited, could allow websites to access a…

The Hacker News
The Hacker News Vulnerabilities
CISA Warns of Suspected Broader SaaS Attacks Exploiting App Secrets and Cloud Misconfigs

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Thursday revealed that Commvault is monitoring cyber threat activity targeting applications…

Microsoft 365 Azure

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles
Microsoft Open-Sources WSL Years After Its Debut

For years, Windows Subsystem for Linux (WSL) has closed the gap between Windows and Linux ecosystems. It's used by developers, engineers, and system administra…

Linux Windows

Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses
Latest Hacking News | Cyber Security News, Hacking Tools and Penetration Testing Courses Vulnerabilities
CISA Warns Of Actively Exploited Vulnerability In Microsoft Outlook

Despite the fix being available, the delays in patching devices allowed the threat actors to…CISA Warns Of Actively Exploited Vulnerability In Microsoft Outloo…

Microsoft 365

The Hacker News
The Hacker News Vulnerabilities
Microsoft Uncovers macOS Vulnerability CVE-2024-44243 Allowing Rootkit Installation

Microsoft has shed light on a now-patched security flaw impacting Apple macOS that, if successfully exploited, could have allowed an attacker running as "root"…

Apple

The Hacker News
The Hacker News Vulnerabilities
Microsoft Sues Hacking Group Exploiting Azure AI for Harmful Content Creation

Microsoft has revealed that it's pursuing legal action against a "foreign-based threat–actor group" for operating a hacking-as-a-service infrastructure to inte…

Azure

The Hacker News
The Hacker News Vulnerabilities
Microsoft Fixes 72 Flaws, Including Patch for Actively Exploited CLFS Vulnerability

Microsoft closed out its Patch Tuesday updates for 2024 with fixes for a total of 72 security flaws spanning its software portfolio, including one that it said…

The Hacker News
The Hacker News Breaches & leaks
Microsoft Launches Windows Resiliency Initiative to Boost Security and System Integrity

Microsoft has announced a new Windows Resiliency Initiative as a way to improve security and reliability, as well as ensure that system integrity is not compro…

Windows