Network Security
The latest Network Security coverage — news, analysis, and updates from the WindowsNews.AI desk.
Allow Apps Through Windows 11 Firewall Without Disabling Security
Windows Defender Firewall serves as the primary security barrier for Windows 11 systems, but its automated protection mechanisms don't always accommodate every application's unique networking...
CVE-2025-40170: Linux Kernel Networking Flaw Spotted by Microsoft—Update Your Cloud VMs Now
Microsoft’s Security Response Center published an advisory Tuesday for CVE-2025-40170, a Linux kernel vulnerability that can freeze or crash servers when network devices are reconfigured under...
Windows 11 Firewall Guide: Eight Steps to Block Threats and Lock Down Hosts
Microsoft Defender Firewall, built directly into Windows 11, represents one of the most critical yet often overlooked security components for both individual users and enterprise administrators. As...
Azure Thwarts Record 15.72 Tbps DDoS Attack: Cloud Security Milestone
Microsoft's Azure cloud platform has successfully defended against the largest distributed denial-of-service (DDoS) attack ever recorded, neutralizing a massive 15.72 terabits per second assault that...
Disconnect Unpatched Windows PCs From Internet, Which? Urges Users
Consumer advocacy group Which? has issued a stark warning to Windows users about the dangers of continuing to use unsupported operating systems, advising that "extreme caution" should be exercised...
DNS Over HTTPS: Complete Guide to Privacy, Performance & Windows Setup
DNS Over HTTPS (DoH) represents one of the most significant privacy advancements in internet technology since the adoption of HTTPS for web traffic. This protocol fundamentally changes how your...
Linux Kernel IPv4 Security Patch Fixes Critical Race Condition CVE-2025-40074
Linux kernel developers have addressed a significant security vulnerability in IPv4 networking code that could have led to use-after-free conditions and potential system compromise. The patch,...
Windows 11’s Hidden Privacy Switch: Encrypt All DNS in 5 Minutes
Most Windows 11 users are unknowingly broadcasting their browsing habits to anyone on the network—until they flip a single setting. That setting, DNS over HTTPS (DoH), encrypts every domain lookup...
CISA Flags Critical Westermo WeOS 5 IPsec Bug That Reboots Devices Remotely
Westermo has confirmed a serious vulnerability in its WeOS 5 operating system that lets an attacker crash a vulnerable industrial switch or router with a single malformed network packet. The flaw,...
Don’t Expose Your Server: How to Enable Remote Desktop on Windows Server 2019 the Secure Way
Microsoft shipped Windows Server 2019 with Remote Desktop disabled by design. That decision wasn’t an accident — it was a response to years of ransomware gangs, brute-force bots, and accidental...
SonicWall Cloud Backups Raided, Firewall Configs Stolen — What You Must Do Now
SonicWall disclosed on September 17, 2025, that attackers broke into its MySonicWall cloud backup service and made off with exported firewall configuration files. The company terminated the...
Microsoft's September Patch Tuesday: 86 Fixes, Yet Zero-Day Questions Remain
Microsoft shipped 86 security patches on September 9, 2025, addressing a sprawling set of vulnerabilities in Windows, Office, SQL Server, and other platforms. Yet only hours after the release, a...