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.
Fix CVE-2026-68820: Windows afd.sys Zero-Day Triage
How to fix CVE-2026-68820, the actively exploited Windows afd.sys zero-day from August 2026. Patch verification, affected builds, and IT mitigations.
August 2026 Patch Tuesday: CVE Zero-Day Defender Fix
Microsoft patched 421 CVEs in August 2026 Patch Tuesday including two zero-days. Our team's step-by-step triage, PowerShell checks, and Defender engine fix.
DEBULL Abuse of M365 Device Code Flow: Defense Guide (2026)
Learn how DEBULL tooling abuses Microsoft 365 OAuth device code flow, why MFA fails, and how to configure Entra ID Conditional Access to block token theft.
5 Best Free VPN Services in 2026 (Tested & Verified)
Which free VPN is actually safe? We benchmarked Proton, Windscribe, and Hide.me for WireGuard speeds, DNS leaks, and truly unlimited bandwidth.