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Advisories
openSUSE systemd Moderate Escape-to-Host Threat 2026-2785-1
An update that solves one vulnerability and has three security fixes can now be installed.
SUSE openSUSE Moderate Security Fix for systemd nspawn 2026-2785-1
An update that solves one vulnerability and has three security fixes can now be installed.
SUSE Important Update for xorg-x11-server CVE-2026-55999, CVE-2026-56000
An update that solves two vulnerabilities can now be installed.
openSUSE xorg-x11-server Important Buffer Overflow Heap Issues 2026-2786-1
An update that solves two vulnerabilities can now be installed.
SUSE xwayland Important Buffer Overflow Use After Free Vuln 2026-2787-1
An update that solves two vulnerabilities can now be installed.
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Featured Articles
How to Detect Unauthorized SSH Key Usage on Linux Systems
SSH persistence usually does not look malicious at first. The login succeeds normally, the session...
Monitoring East-West Traffic with Suricata: Finding Threats Inside Your Network
Most security teams are locked into a perimeter-first mindset. They obsess over north-south...
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AryStinger: Why Thousands of Unpatched Linux Routers Are Being Weaponized
More than 4,300 internet-facing devices have been pulled into a newly documented router malware...
Does Linux Give Users a False Sense of Security? What This Year's Biggest Linux Security Incidents Actually Reveal
If more than 12 million enterprise systems can be exposed by flaws in a security control designed...
Cron Job Abuse For Linux Persistence Mechanisms Detection
A Linux server gets cleaned up after an intrusion. The suspicious process is terminated,...
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Latest Linux Security News
Locking Down Linux Network Security with Private Routing Techniques
The Hidden Cost of Enterprise SSH Authentication
We often view OpenSSH security updates through the lens of standard patch management. When a new CVE hits, we scramble to update, check our versions, and return to business as usual. But recent vulnerabilities tied to distribution-added OpenSSH GSSAP...
How Linux Security Teams Can Prioritize Real-World Attack Paths and Reduce Alert Fatigue
Linux security teams are drowning. Patches, kernel updates, new CVEs every week. SSH exposed here, an old web service there, and a forgotten cron job running as root. On top of that, SIEM dashboards blink all day with alerts that all claim to be “hig...
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HOWTOs
Detection-as-Code for Linux: Building Security Rules That Last
One of the easiest mistakes to make in detection engineering is assuming a rule keeps working simply because nobody has touched it. Most of the time, nobody removes the rule. Nobody disables it. It just gets forgotten.
How to Check Docker Container Isolation in Linux
Docker makes containers feel like separate, lightweight virtual machines. They have their own hostnames, processes, and networking—but are they actually isolated? Many administrators assume they are without ever verifying the boundaries. If you’ve ev...
How to Investigate Linux Persistence During Incident Response
You’re staring at a service or a cron job that’s giving you a bad feeling. Stop. The most dangerous thing you can do right now is act on that gut feeling alone. Linux systems are inherently noisy—package managers, configuration management, and the oc...
How to Build Behavioral Detections with eBPF on Linux
Building effective behavioral detections starts with understanding how processes behave at runtime, rather than simply collecting more logs. eBPF gives Linux security teams the visibility needed to correlate those behaviors into meaningful detections...
How to Read Linux Audit Logs During an Intrusion
When a security alert fires, the panic often sets in before the analysis. Many administrators instinctively reach for /var/log/auth.log or journalctl, but those logs tell only a partial story. They document successful logins and authentication attemp...
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