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Featured Articles
Cron Job Abuse For Linux Persistence Mechanisms Detection
A Linux server gets cleaned up after an intrusion. The suspicious process is terminated,...
How Open Source SIEM Architectures Scale Beyond Single-Server Deployments
Building a SIEM is easier than scaling one. Most open-source deployments start as a simple...
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HTTP/2 Bomb: Why Linux Infrastructure is Vulnerable to a New Low-Bandwidth DoS Attack
A newly disclosed attack technique called HTTP/2 Bomb is drawing attention because it targets the...
Compromised VS Code Extension Puts Linux Development Pipelines at Risk
The compromise of Nx Console shows how much infrastructure now sits behind a single developer...
Linux Persistence Hunting: The 5 Techniques Security Teams Miss Most
You remove the malware. You rotate the compromised credentials. You patch the original...
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Latest Linux Security News
FFmpeg PixelSmash Vulnerability Exposes Linux Media Servers to Remote Code Execution Risk
Examining Security Weaknesses and Regulatory Shortcomings
Today, organizations rely heavily on technology for their operations, to secure important information and provide services in a digital world. Digital transformation opens up new opportunities, but also poses an increasing challenge for businesses an...
Europe’s Open Source Strategy Takes Aim at Software Security’s Maintenance Problem
Some of the software the world depends on most is maintained by people most users will never know by name. The project might be sitting inside Linux distributions, enterprise software, cloud platforms, and government systems without most users ever r...
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HOWTOs
How to Investigate High System Load During a Security Incident
When a production server spikes at 99% CPU or the disk starts grinding, the knee-jerk reaction is usually to blame a bad code push or a runaway backup job. But if you’ve spent enough time in security incident response, you know that "performance issu...
How to Find and Secure Exposed Services on Linux
Open ports have a way of accumulating over time. A test environment gets deployed and never removed. An administrative interface is exposed for troubleshooting and left in place. A database that was supposed to listen internally ends up reachable fro...
How to Find and Remove Malicious Cron Jobs on Linux
A compromised Linux server can continue running malware long after the initial intrusion. One of the most common persistence techniques is a malicious cron job that silently downloads payloads, restarts malware, or re-establishes attacker access ever...
How to Harden SSH on Linux After Disabling Password Authentication
Most SSH hardening advice ends at the same recommendation: Disable password authentication and use SSH keys.
How to Detect Unauthorized SSH Keys on Linux Systems
Most of the time, nobody notices. SSH authentication succeeds, no alerts are generated, and the connection looks exactly the way it did the day the key was installed. That's part of the problem.
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