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188 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's Top Execs' Emails Breached in Sophisticated Russia-Linked APT Attack

Microsoft on Friday revealed that it was the target of a nation-state attack on its corporate systems that resulted in the theft of emails and attachments from…

Windows

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns of Kremlin-Backed APT28 Exploiting Critical Outlook Vulnerability

Microsoft on Monday said it detected Kremlin-backed nation-state activity exploiting a now-patched critical security flaw in its Outlook email service to gain …

Microsoft 365 Exchange

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns as Scattered Spider Expands from SIM Swaps to Ransomware

The prolific threat actor known asScattered Spiderhas been observed impersonating newly hired employees in targeted firms as a ploy to blend into normal on-hir…

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns of Cyber Attacks Attempting to Breach Cloud via SQL Server Instance

Microsoft has detailed a new campaign in which attackers unsuccessfully attempted to move laterally to a cloud environmentthrough an SQL Server instance."The a…

The Hacker News
The Hacker News Breaches & leaks

Outlook Breach: Microsoft Reveals How a Crash Dump Led to a Major Security Breach

Microsoft on Wednesday revealed that a China-based threat actor known asStorm-0558acquired the inactive consumer signing key to forge tokens and access Outlook…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Outlook Hack: Microsoft Reveals How a Crash Dump Led to a Major Security Breach

Microsoft on Wednesday revealed that a China-based threat actor known asStorm-0558acquired the inactive consumer signing key to forge tokens and access Outlook…

Microsoft 365

The Hacker News
The Hacker News Breaches & leaks

Threat Actors Targeting Microsoft SQL Servers to Deploy FreeWorld Ransomware

Threat actors are exploiting poorly secured Microsoft SQL (MS SQL) servers to deliver Cobalt Strike and a ransomware strain called FreeWorld.Cybersecurity firm…

The Hacker News
The Hacker News Breaches & leaks

Cybercriminals Exploit Microsoft Word Vulnerabilities to Deploy LokiBot Malware

Microsoft Word documents exploiting known remote code execution flaws are being used as phishing lures to drop malware calledLokiBoton compromised systems."Lok…

Windows Fortinet

The Hacker News
The Hacker News Breaches & leaks

Severe Vulnerabilities Reported in Microsoft Azure Bastion and Container Registry

Two "dangerous" security vulnerabilities have been disclosed in Microsoft Azure Bastion and Azure Container Registry that could have been exploited to carry ou…

Azure Docker

The Hacker News
The Hacker News Breaches & leaks

N. Korean Lazarus Group Targets Microsoft IIS Servers to Deploy Espionage Malware

The infamous Lazarus Group actor has been targeting vulnerable versions of Microsoft Internet Information Services (IIS) servers as an initial breach route to …

The Hacker News
The Hacker News Breaches & leaks

Microsoft Confirms PaperCut Servers Used to Deliver LockBit and Cl0p Ransomware

Microsoft has confirmed that theactive exploitation of PaperCut serversis linked to attacks that are designed to deliver Cl0p and LockBit ransomware families.T…

The Hacker News
The Hacker News Breaches & leaks

Urgent: Microsoft Issues Patches for 97 Flaws, Including Active Ransomware Exploit

It's the second Tuesday of the month, and Microsoft has released another set of security updates to fixa total of 97 flawsimpacting its software, one of which …

The Hacker News
The Hacker News Breaches & leaks

Microsoft Warns of Stealthy Outlook Vulnerability Exploited by Russian Hackers

Microsoft on Friday shared guidance to help customers discover indicators of compromise (IoCs) associated with a recently patched Outlook vulnerability.Tracked…

Microsoft 365

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Microsoft Upgrades Defender to Lock Down Linux Gear for its Own Good

Organizations using Microsoft's Defender for Endpoint will now be able to isolate Linux devices from their networks to contain intrusions and whatnot.

Linux

The Hacker News
The Hacker News Breaches & leaks

Microsoft Reveals Tactics Used by 4 Ransomware Families Targeting macOS

Microsoft has shed light on four different ransomware families –KeRanger, FileCoder, MacRansom, and EvilQuest – that are known to impact Apple macOS systems."W…

Apple

The Hacker News
The Hacker News Breaches & leaks

Ransomware Attackers Use Microsoft-Signed Drivers to Gain Access to Systems

Microsoft on Tuesday disclosed it took steps to implement blocking protections and suspend accounts that were used to publish malicious drivers that were certi…

Windows

The Hacker News
The Hacker News Breaches & leaks

Microsoft Alerts Cryptocurrency Industry of Targeted Cyberattacks

Cryptocurrency investment companies are the target of a developing threat cluster that uses Telegram groups to seek out potential victims.Microsoft's Security …

Latest Hacking News
Latest Hacking News Breaches & leaks

AstraLocker 2.0 Ransomware Spreads Via Phishing Campaigns Including Malicious Microsoft Word Files

Researchers have reverse-engineered AstraLocker 2.0 ransomware targeting users via phishing campaigns. The attackers spread the…AstraLocker 2.0 Ransomware Spre…

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Microsoft Azure FabricScape Bug Let Hackers Hijack Linux Clusters

Microsoft has fixed a container escape bug dubbed FabricScape in the Service Fabric (SF) application hosting platform that let threat actors escalate privilege…

Linux Azure Docker

LinuxSecurity - Security Articles
LinuxSecurity - Security Articles Breaches & leaks

Microsoft Warning: This Malware that Targets Linux Just Got a Big Update

Microsoft warns over recent work by the '8220' malware gang to compromise Linux systems and install cryptomining malware.

Linux

The Hacker News
The Hacker News Breaches & leaks

WARNING: Microsoft Exchange Under Attack With ProxyShell Flaws

The U.S. Cybersecurity and Infrastructure Security Agency is warning of active exploitation attempts that leverage the latest line of "ProxyShell" Microsoft Ex…

Exchange

The Hacker News
The Hacker News Breaches & leaks

Microsoft Exchange Under Attack With ProxyShell Flaws; Over 1900 Servers Hacked!

The U.S. Cybersecurity and Infrastructure Security Agency is warning of active exploitation attempts that leverage the latest line of "ProxyShell" Microsoft Ex…

Exchange

The Hacker News
The Hacker News Breaches & leaks

New APT Hacking Group Targets Microsoft IIS Servers with ASP.NET Exploits

A new highly capable and persistent threat actor has been targeting major high-profile public and private entities in the U.S. as part of a series of targeted …

The Hacker News
The Hacker News Breaches & leaks

US and Global Allies Accuse China of Massive Microsoft Exchange Attack

The U.S. government and its key allies, including the European Union, the U.K., and NATO, formally attributed the massive cyberattack against Microsoft Exchang…

Exchange