Device Hardening guides
Step-by-step, expert-written advice on device hardening — no jargon, just practical guidance you can act on today.
How to Recover and Re-secure SSH on Linux
Disable password auth, rotate keys, ban brute-force IPs with fail2ban, and lock SSH down to your trusted devices.
Read guideHow to Recover a Linux LUKS Encrypted Disk
Use a known LUKS slot, boot from a live USB, and back up your LUKS header before attempting recovery.
Read guideHow to Remove Malicious Cron Jobs and systemd Services on Linux
Disable, mask, and delete malicious scheduled tasks and systemd units, and verify they don't respawn.
Read guideLock Down Your Linux Desktop: Updates, Firewall & Sandboxing
Harden your Linux desktop with automatic security updates, ufw firewall, AppArmor/SELinux, and Flatpak sandboxing.
Read guideLock Down Your Chromebook: Verified Boot, Sync & Safe Browsing
Harden ChromeOS by confirming Verified Boot, enabling Enhanced Safe Browsing, reviewing sync, and powerwashing if needed.
Read guideHow to Turn Off Developer Mode and Re-enable Verified Boot on a Chromebook
Step-by-step return to Verified Boot, including the mandatory Powerwash that resets your Chromebook to a clean state.
Read guideHow to Recover Your Mac From the FileVault Prompt
Locate your FileVault recovery key from iCloud or your password manager.
Read guideWhy Is My Mac Asking for a FileVault Recovery Key?
What a FileVault prompt means and when it indicates an attack vs. a normal change.
Read guideLock Down macOS: Gatekeeper, Firewall, FileVault & Updates
Comprehensive macOS hardening checklist — Gatekeeper, FileVault, Firewall, Updates, Privacy.
Read guideHow to Tell If Gatekeeper or XProtect Is Disabled on Your Mac
Quick checks for Gatekeeper and System Integrity Protection status.
Read guideBack Up Your BitLocker Recovery Key the Right Way
A simple multi-location backup strategy for your BitLocker recovery key so you are never locked out of your own PC.
Read guideStop BitLocker From Prompting on Every Reboot
Suspend BitLocker, finish the firmware update or hardware change that triggered the prompt, then turn protection back on cleanly.
Read guideWhy Is BitLocker Asking for a Recovery Key?
Understand the common reasons BitLocker locks you out — firmware updates, hardware changes, TPM clears — before you start hunting for your key.
Read guideHow to Tell Why Windows Defender Is Turned Off
Defender can be disabled by malware, by a third-party antivirus, or by a Group Policy setting. Find out which before trying to fix it.
Read guideCreate a Standard (Non-Admin) User Account on Windows
Reduce the damage malware and remote attackers can do by using a standard account for daily work and reserving the admin account for installs only.
Read guideLock Down Windows: Defender, SmartScreen, UAC & Updates
Harden a Windows 10 or 11 PC against malware, adware and remote-access scams by configuring the security tools already built into Windows.
Read guideHow to Install GrapheneOS on Your Pixel Phone
A complete step-by-step guide to installing GrapheneOS on your Google Pixel using the official web installer. No command line needed.
Read guideHow to Secure Your Social Media Accounts
A comprehensive guide to hardening your social media accounts with 2FA, privacy settings, and security best practices.
Read guideHow to Secure Your Snapchat Account
Step-by-step guide to hardening your Snapchat account against hackers.
Read guideHow to Secure Your TikTok Account
Step-by-step guide to hardening your TikTok account against hackers.
Read guideHow to Secure Your LinkedIn Account
Step-by-step guide to hardening your LinkedIn account against hackers.
Read guideHow to Secure Your X (Twitter) Account
Step-by-step guide to hardening your X/Twitter account against hackers.
Read guideHow to Secure Your Instagram Account
Step-by-step guide to hardening your Instagram account against hackers.
Read guideHow to Secure Your Facebook Account
Step-by-step guide to hardening your Facebook account against hackers and unauthorised access.
Read guideHow to Secure Your Email Account
A comprehensive, provider-agnostic guide to hardening your email account against hackers — covering 2FA, app passwords, recovery settings, phishing defence, and ongoing monitoring.
Read guideWhy You Should Switch to Proton Mail
Gmail can read your inbox — Proton Mail can't. See how end-to-end encryption, zero-access, and Swiss privacy law protect your email, and how easy it is to switch.
Read guideHow to Secure Your Yahoo Mail Account
Protect your Yahoo Mail account with Account Key, app passwords, and essential security hardening steps.
Read guideHow to Secure Your iCloud Mail Account
Harden your Apple ID and iCloud Mail with two-factor authentication, app-specific passwords, and privacy settings.
Read guideWhat Is End-to-End Encryption?
A beginner-friendly guide to understanding end-to-end encryption, how it works, and why it matters for your privacy.
Read guideHow to Secure a Proton Account
A step-by-step guide to hardening your Proton account with two-factor authentication, recovery methods, and best practices.
Read guideWhy ProtonMail Is the Most Private & Secure Email in 2026
An in-depth look at why ProtonMail remains the gold standard for email privacy and security in 2026, covering its encryption, infrastructure, and philosophy.
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