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Security teams have never had more visibility, yet rarely have they felt more uncertain. Signal pours in from endpoints, identities, cloud workloads, and a sprawling mix of third-party tools. The post Turning threat intelligence into decisive action with Defender Experts appeared first on Microsoft Security Blog.
Sophos looked at a week of its own endpoint data and found that AI coding agents such as Claude Code, Cursor, and OpenAI Codex are setting off detection rules written to catch human intruders
Python scripts were used to test malware against endpoint detection and response agents from Sophos, CrowdStrike, and Windows Defender.
Microsoft is testing a new Defender for Endpoint capability that will automatically isolate compromised endpoints to thwart attackers' attempts to move laterally across the network. [...]
A new Kyber ransomware operation is targeting Windows systems and VMware ESXi endpoints in recent attacks, with one variant implementing Kyber1024 post-quantum encryption. [...]
Your attack surface no longer lives on one operating system, and neither do the campaigns targeting it. In enterprise environments, attackers move across Windows endpoints, executive MacBooks, Linux infrastructure, and mobile devices, taking advantage of the fact that many SOC workflows are still fragmented by platform. For security leaders, this creates a
Iran-linked attackers wiped employees' devices using Intune The US government has urged companies to better secure Microsoft Intune, an endpoint management tool that was abused in last week's cyberattack against med-tech firm Stryker.…
CISA warned U.S. organizations to follow Microsoft guidance to strengthen the Intune endpoint management tool after a cyberattack exploited it to wipe medical technology giant Stryker's systems. [...]
The North Korean threat actors associated with the long-running Contagious Interview campaign have been observed using malicious Microsoft Visual Studio Code (VS Code) projects as lures to deliver a backdoor on compromised endpoints
A flaw in JumpCloud Remote Assist for Windows has exposed managed endpoints to local privilege escalation and denial-of-service attacks
The initial access broker has been weaponizing endpoint detection and response (EDR) platforms and Windows utilities in recent high-precision attacks.
An initial access broker tracked as Storm-0249 is abusing endpoint detection and response solutions and trusted Microsoft Windows utilities to load malware, establish communication, and persistence in preparation for ransomware attacks. [...]
Microsoft on Monday disclosed that it automatically detected and neutralized a distributed denial-of-service (DDoS) attack targeting a single endpoint in Australia that measured 5.72 terabits per second (Tbps) and nearly 3.64 billion packets per second (pps)
Curly COMrades strike again Russia's Curly COMrades is abusing Microsoft's Hyper-V hypervisor in compromised Windows machines to create a hidden Alpine Linux-based virtual machine that bypasses endpoint security tools, giving the spies long-term network access to snoop and deploy malware.…
The Russian hacker group Curly COMrades is abusing Microsoft Hyper-V in Windows to bypass endpoint detection and response solutions by creating a hidden Alpine Linux-based virtual machine to run malware. [...]
Microsoft is working to resolve a known issue that causes its Defender for Endpoint enterprise endpoint security platform to incorrectly tag SQL Server software as end-of-life. [...]
A new report from TeamViewer found that 40% of global endpoints still run Windows 10, just days before security updates and support ends for the operating system
Microsoft is working to resolve a bug that causes Defender for Endpoint to incorrectly tag some devices' BIOS (Basic Input/Output System) firmware as outdated, prompting users to update it. [...]
In this type of misconfiguration, cyberattackers could use exposed secrets to authenticate directly via Microsoft’s OAuth 2.0 endpoints and infiltrate Azure cloud environments.
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