Security Guide Series
Protect your accounts, devices, and data. Simple guides on password managers, two-factor logins, and safe browsing habits.
Staying safe online does not need to be hard. We test and share simple security steps that anyone can follow. Learn how to pick a solid password manager, turn on two-factor logins, and avoid scams. Good security starts with small habits. Use unique passwords for each account. Keep your apps up to date. Each guide walks you through one task at a time so you can protect yourself quickly.
About the Security Knowledge Base
Welcome to our Security guide collection. Our team tests real solutions on physical hardware. We share clear steps, proven scripts, and practical fixes. You get exact terminal commands without fluff or guesswork.
Each guide helps you fix a specific issue or speed up your daily workflow. Browse the tutorials below to find working fixes, benchmark data, and verified code.
All Security Guides & Technical Runbooks
Linux Distro Supply Chain Attacks: XZ Utils to Dirty COW
Forensic audit of Linux supply chain attacks and kernel flaws across Debian, Ubuntu, and Arch, featuring detection commands and audit scripts.
Unix & macOS Outages: From Morris Worm to Empty Root Bug
A 38-year retrospective of historic Unix and macOS outages, analyzing the Morris Worm, High Sierra blank root bug, and XcodeGhost toolchain attacks.
Biggest OS Outages & Downtimes: Historical Incident Tracker
From WannaCry to CrowdStrike and XZ Utils: an interactive tracker and forensic analysis of the biggest operating system outages in computing history.
CVE-2026-68820 Windows Zero-Day Fix: 3 Tested Steps (2026)
Fix CVE-2026-68820: the exploited Windows afd.sys zero-day privilege escalation vulnerability. Complete PowerShell verification script and hotfix runbook.
Windows Defender CVE Zero-Day Patch: 3 Triage Steps (2026)
Triage active Windows Defender zero-days across your fleet. Patch verification, registry hardening, and WMI repair runbook for enterprise sysadmins.
Microsoft Device Code Flow DEBULL Abuse: 3 Fixes (2026)
How threat actors weaponize DEBULL tooling against Microsoft 365 Device Code Flow. Our sysadmin guide to Conditional Access policies and sign-in triage.
Best Free VPN 2026: 5 Tested Safe Plans (Zero Logs)
Which free VPN is actually safe? We tested Proton, Windscribe, and Hide.me on our lab bench for WireGuard throughput, DNS leaks, and genuine zero-log privacy.