Topic: network monitoring
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Portmaster: Free Open-Source Firewall for Your Apps
Portmaster is a free, open-source application firewall for Windows and Linux that provides granular control over network traffic to enhance user privacy through intelligent automation. It inspects all network packets at a low level, identifies connections by application, and allows users to set d...
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Nozomi Networks' Arc Release Boosts OT Security
Nozomi Networks has upgraded its Arc platform to include automated threat prevention for operational technology, enabling active defense of critical infrastructure without downtime. The enhancement introduces flexible prevention modes, OT-focused threat intelligence, and seamless integration with...
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Top Cybersecurity Open-Source Tools: October 2025 Edition
This month's selection of open-source cybersecurity tools offers cost-effective solutions for strengthening security across IT environments, including code analysis and network monitoring. Key tools highlighted include Checkov for infrastructure code scanning, DefectDojo for vulnerability managem...
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EFF's Rayhunter: Open-Source Tool to Detect Cellular Spying
The Electronic Frontier Foundation (EFF) has released Rayhunter, an open-source tool that detects cell site simulators used for unauthorized mobile surveillance. Rayhunter runs on affordable hardware, analyzes metadata without capturing personal data, and alerts users via a visual interface when ...
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How a Chinese Firm Is Exporting Internet Censorship Worldwide
A Chinese tech firm, Geedge Networks, is marketing a sophisticated internet censorship system globally that mirrors China's Great Firewall, raising concerns about the export of digital authoritarianism. The company's platform enables state-level surveillance, including monitoring communications, ...
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Old Windows Flaws Still Leak Your Passwords
Outdated Windows protocols like LLMNR and NBT-NS pose a security threat by allowing credential theft through inherent design flaws, not software vulnerabilities, as they automatically trust any responding device on the network. Attackers can use tools like Responder to intercept authentication da...
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Ookla's New One-Tap Wi-Fi Troubleshooter Fits on Your Phone
Ookla's Speedtest Pulse is a compact MagSafe-compatible diagnostic tool that simplifies Wi-Fi troubleshooting for users of all technical levels by identifying connectivity issues and offering clear solutions. The device operates in two modes—immediate diagnostics and continuous monitoring—using m...
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Top Open-Source Tools to Fix Security Gaps Fast
Open-source security tools like Cortex, Fluentd, and Security Onion offer cost-effective solutions for vulnerability identification, log management, and network visibility, enhancing threat response without high costs. Tools such as Snort and Suricata provide flexible intrusion detection and prev...
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Hackers Install a Literal Antivirus at Security Conference
Kawaiicon installed a live COâ‚‚ monitoring network to track air quality in real-time, allowing attendees to check an online dashboard before entering different zones. The system used DIY sensors placed in key areas like session rooms and children's spaces, enabling informed decisions about space u...
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Accenture Acquires Downdetector and Speedtest in $1.2B Deal
Accenture has acquired Ookla, the company behind Speedtest and Downdetector, for $1.2 billion to enhance its network optimization and data analytics services. The acquisition includes Ookla's full suite of platforms, which Accenture will integrate to provide clients with advanced tools for managi...
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Master Network Security with pfSense: Open-Source Firewall & Router
pfSense CE is a free, open-source firewall and routing platform that provides a cost-effective, flexible alternative to commercial solutions for network security. It functions as a stateful firewall and router with an intuitive web interface, supporting IPv4/IPv6, VLANs, multi-WAN, and integrated...
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US Slashes Funding for Key Cybersecurity Program
CISA has terminated its cooperative agreement with CIS, ending federal funding for the MS-ISAC and jeopardizing this central cybersecurity resource for state, local, and tribal governments. The MS-ISAC provided over 18,000 public sector members with critical cybersecurity tools, including threat ...
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Barracuda Exposes Stealthy Microsoft 365 Phishing Kit
Whisper 2FA is a sophisticated phishing-as-a-service platform that has compromised nearly one million Microsoft 365 accounts by stealing login credentials and authentication tokens since July 2025. It employs a continuous credential theft loop that persistently prompts victims for multi-factor au...
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Akira Ransomware Exploits SonicWall Firewalls to Breach Organizations
SonicWall firewalls are still being exploited by Akira ransomware affiliates due to unpatched vulnerabilities and misconfigurations, including CVE-2024-40766 and SSLVPN settings. Attackers gain initial access through SSLVPN, escalate privileges, and deploy ransomware after exfiltrating data and d...
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Azure Outage Ends, But Issues Remain: What Went Wrong
Microsoft Azure experienced a significant global outage on October 29, lasting about eight hours and affecting all regions due to an inadvertent configuration change in Azure Front Door. The disruption impacted numerous services including Microsoft 365, Teams, and Xbox Live, as well as enterprise...
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5-Minute OT Cyber Resilience Guide
Operational technology cybersecurity resilience is vital for protecting critical infrastructure, with identifying all remote access points and supply chain connections forming the foundation of a strong security strategy. Specialized monitoring sensors are essential in OT environments to detect a...
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Harmonic Powers NESN's Next-Gen Sports Streaming
NESN has partnered with Harmonic to deploy a new primary distribution solution, enhancing video quality and enabling advanced advertising features for live sports broadcasts. The system uses Harmonic's XOS media processor and AI-driven encoding to reduce bitrates by up to 50% while supporting 4K ...
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