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Core Concepts: Minimize Your Exposure, Protect Your Data Your operating system is the foundation of your computer's security. Everything else, your applications, your files, your passwords, sits on top of it. A properly configured OS blocks most attacks befor...

Core Concepts: Minimize Your Exposure, Protect Your Data All the passwords, encryption, and firewalls in the world won't help if someone can simply walk away with your laptop or peek over your shoulder to see your password. Physical security is often overlook...

Core Concept: Protect Your Data Data doesn't just disappear when you delete it. When you click "delete" or throw a device in the trash, your personal information often remains completely recoverable. This section covers how to properly manage data throughout ...

Core Concepts: Protect Yourself, Minimize Your Exposure Your web browser and email are your primary gateways to the internet, and the primary ways attackers try to reach you. Most cyber attacks start with either a malicious website or a phishing email. Good b...

Core Concepts: Protect Your Data, Minimize Your Exposure Your home WiFi network is the gateway to everything in your digital life, your computers, phones, tablets, smart home devices, security cameras, and more. A compromised network means all your devices ar...

Core Concepts: Minimize Your Exposure, Protect Your Data Smart home and other Internet of Things (IoT) devices make life convenient; smart speakers, security cameras, thermostats, door locks, light bulbs, refrigerators, and more. But these devices are often t...

Core Concepts: Protect Yourself, Protect Your Data VPNs are one of the most misunderstood security tools. They're marketed as making you "invisible online" which isn't true, but they do have legitimate, specific uses that can protect your privacy and security...

Core Concepts: All Four Travel introduces unique risks. Prepare before you go and stay vigilant while away. 4.5.1. Before You Leave Back Up Everything: Full backup, test restore (see Backups topic) Enable and Test Find My Device: Verify location tr...

Core Concepts: Protect Your Data, Have a Recovery Plan You need backups BEFORE disaster strikes. Ransomware, hardware failure, theft, accidental deletion, fire, flood, or simple human error, any of these can wipe out years of photos, documents, and memories i...

When you discover a security incident: Don't panic - Take a breath; most incidents are recoverable if you act systematically Find the right playbook - Match your situation to one of the scenarios below Follow the steps in order - Steps are prior...

Compromised Email Account Signs your email might be compromised: Can't log in / password doesn't work Emails you didn't send in your sent folder New forwarding rules or filters you didn't create Password reset emails you didn't request Even assuming ...

Identity Theft Signs of identity theft: Accounts or loans you didn't open appearing on credit report Calls or mail from debt collectors about debts you don't owe IRS notification of multiple tax returns filed in your name Medical bills for...

Ransomware Infection Signs of ransomware Files suddenly encrypted with unfamiliar extensions (.locked, .cerber, etc.) Ransom note demanding payment for decryption Desktop wallpaper changed to ransom message Unable to open files (photos, do...

Monthly Checklist Time Required: ~30 minutes Backups Verify your computer backup completed successfully (check last backup date) Verify your phone backup completed successfully Check backup drive has sufficient free space For cloud backup...

Term Definition 3-2-1 Rule A backup strategy: keep 3 copies of your data, on 2 different types of storage, with 1 copy stored offsite (like in the cloud). Account recovery The backup ways to prove an account is yours (like a re...

One identity provider, every service, and the configuration that makes it work. This book is a working reference for putting every service in a self-hosted environment behind a single identity provider. It opens with the case for why you should centralize your...

Pattern: identity only. Discourse authenticates users through Keycloak but does no group or role mapping. The IdP answers one question, "who is this user," and Discourse handles authorization internally with its own trust levels and groups. Use this pattern fo...

Pattern: group-aware. BookStack authenticates users through Keycloak and reads their group membership from the token, mapping Keycloak groups onto BookStack roles so that access is driven entirely by the IdP. This is the pattern for any app that should grant p...