Guide Browser
Browser Fingerprinting (Guide)
How a device gets identified from the shape of its requests, what resists it, and what a fingerprint is worth.
Guides
Guides explain a subject and recommend an approach. They are written to be read in order, they state how hard they are, and they finish with the documents they were written from. Nothing here is a product review.
Start here
Guide Messaging
End-to-End Encrypted Messaging (Guide)
What the encryption protects, what the provider still sees, and why metadata is usually the real story.
Guide Metadata
Metadata Explained (Guide)
A worked primer on data about data: what leaks even with perfect encryption, and the measures that actually reduce it.
Guide Password Managers
Using a Password Manager (Guide)
Why password reuse is the main threat, what to look for in a manager, and how to migrate without a lockout.
Guide Privacy
What Privacy Actually Means (Guide)
A working definition of privacy, the four kinds people mean, and why the word gets used to sell things.
Guide OPSEC & Threat Modeling
Define Your Threat Model (Guide)
Work out who you are protecting something from before you install anything, using a written, revisable model.
Guide Tor
What Tor Is (Guide)
How onion routing works, what it guarantees, what it does not, and the misconceptions that cause harm.
Guide VPNs
What VPNs Do and Do Not Do (Guide)
The single change a VPN makes, the trust it transfers rather than removes, and how to read a provider claim.
Start here. What privacy actually means, who it protects, and how to think about it without jargon.
- Data brokers and the market for personal information Intermediate 2026-09-27
- Harm Reduction for Beginners Introductory 2026-09-27
- Permission minimisation Introductory 2026-09-27
- What Privacy Actually Means Introductory 2026-09-27
Decide what you are protecting, from whom, and what "good enough" looks like before you configure anything.
- Common Threats and Which Ones Deserve Action Intermediate 2026-09-27
- Define Your Threat Model Introductory 2026-09-27
- Incident response for ordinary people Intermediate 2026-09-27
What a browser reveals about you by default, and how fingerprint-resistant browsers reduce it.
- Browser Fingerprinting Intermediate 2026-09-27
- Choosing a Browser Introductory 2026-09-27
Search queries are a surprisingly complete record of your interests.
- Search Engine Privacy Introductory 2026-09-27
End-to-end encryption, metadata, and the difference between the two.
- End-to-End Encrypted Messaging Intermediate 2026-09-27
Why email is hard to secure, and which compromises are actually worth making.
- Email Privacy Intermediate 2026-09-27
The single highest-value change most people can make to their security.
- Using a Password Manager Introductory 2026-09-27
Passwords, one-time codes, passkeys, and how to add a second factor without losing access.
- Account recovery is part of account security Intermediate 2026-09-27
- Passkeys Intermediate 2026-09-27
- Security keys and phishing-resistant sign-in Intermediate 2026-09-27
- Two-Factor Authentication Introductory 2026-09-27
What a VPN changes, what it does not, and how to tell a good one from a marketing page.
- What VPNs Do and Do Not Do Intermediate 2026-09-27
Onion routing, its guarantees, its limits, and the browser built around it.
- Tor Browser and Searching on Tor Intermediate 2026-09-27
- What Tor Is Introductory 2026-09-27
Name resolution leaks your browsing to the network, and how to close that leak.
- DNS over HTTPS in Practice Advanced 2026-09-27
- DNS Privacy Intermediate 2026-09-27
Baseline hardening: updates, encryption, permissions, and reducing telemetry.
- Full-Disk Encryption Introductory 2026-09-27
- Operating System Hardening Basics Intermediate 2026-09-27
- Software updates and the security window Introductory 2026-09-27
Phones are the most capable trackers most people carry.
- Mobile Device Privacy Intermediate 2026-09-27
Data about data is still data. A short primer with worked examples.
- Metadata Explained Introductory 2026-09-27
- Photo metadata and location privacy Introductory 2026-09-27
Encryption in transit and at rest, key management, and the limits of both.
- Encryption Explained Introductory 2026-09-27
- Key Management Advanced 2026-09-27
- Secure backups that survive device loss Intermediate 2026-09-27
Your local network sees more than your ISP does. What to do about it.
- Home Network Privacy Intermediate 2026-09-27
- Public Wi-Fi and hostile networks Introductory 2026-09-27
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