Privacy
Guides.
Human-reviewed explainers about the browser, network, and device signals shown by WhatsMyDevice.
How to Check If Your Credentials Were Leaked in a Data Breach
Step-by-step guide to discovering compromised email addresses and passwords in historical data breaches, credential stuffing defense, and password managers.
What Is a DNS Leak? Complete Diagnostic & Prevention Guide
Discover how DNS leaks happen when using VPNs, why your ISP still sees your browsing requests, and how to configure static DNS and WireGuard tunnels.
2FA & MFA Guide: Why SMS Is Insecure vs Authenticator Apps and Passkeys
Comprehensive comparison of Two-Factor Authentication methods. Why SMS 2FA is vulnerable to SIM swapping, and why FIDO2 Passkeys are phishing-resistant.
Public Wi-Fi Security Guide: Protecting Against Packet Sniffing & MitM
Essential security checklist for connecting to public Wi-Fi networks in airports, cafes, and hotels. How to prevent packet sniffing and rogue hotspots.
Audio Fingerprinting: How the Web Audio API Generates Unique Hashes
Learn how the HTML5 Web Audio API processes synthetic audio signals through your sound stack to generate persistent browser fingerprints without playing sound.
WebGL & GPU Fingerprinting: How Shaders and Renderers Track Devices
Technical breakdown of WebGL unmasked renderer queries, GPU shader precision variations, and how websites identify your graphics hardware.
Incognito & Private Browsing Mode: 5 Dangerous Myths vs Reality
Debunking the most common misconceptions about Private Browsing. What Incognito actually protects against and what remains completely visible.
Battery Status API: Why Browsers Deprecated Battery Level Tracking
Explore the history of the HTML5 Battery Status API, how high-precision battery discharge metrics allowed cross-site tracking, and why it was removed.
Cookies vs LocalStorage vs IndexedDB: How Sites Store Tracking Data
A deep comparison of browser client storage technologies, how data brokers leverage Web Storage APIs for persistent user tracking, and how to defend.
What Is DNS-over-HTTPS (DoH) and Why Does It Matter for Privacy?
Understand how DNS-over-HTTPS (DoH) and DNS-over-TLS (DoT) encrypt standard DNS lookups to prevent ISP eavesdropping, spoofing, and ISP tracking.
Why Use Two Factor Authentication
A comprehensive guide about why use two factor authentication.
Why CPU, RAM, GPU, and Storage Values Are Estimates
Understand why browser hardware values are often rounded, bucketed, blocked, or browser-managed rather than exact device specifications.
What Is a Browser Fingerprint and How Can You Reduce It?
A practical guide to browser fingerprinting, which signals websites can read, what WhatsMyDevice can and cannot prove, and how to reduce unnecessary identifiability.
What Is a WebRTC Leak and How Should You Interpret the Result?
A careful explanation of WebRTC candidates, public IP visibility, VPN testing, and why a public WebRTC candidate is not automatically a leak.
What Is A Mac Address
A comprehensive guide about what is a mac address.
What Can Websites See About Your Device?
A practical guide to the browser, screen, GPU, memory, permission, and network signals a normal website can read from your device.
What Are Data Brokers
A comprehensive guide about what are data brokers.
Webgl Fingerprinting Explained
A comprehensive guide about webgl fingerprinting explained.
Vpn Vs Proxy
A comprehensive guide about vpn vs proxy.
Vpn Protocols Compared
A comprehensive guide about vpn protocols compared.
User Agent String Analysis
A comprehensive guide about user agent string analysis.
Understanding IP Addresses: IPv4, IPv6, VPNs, and What Sites Can See
Learn what your public IP address reveals, why IPv4 and IPv6 can appear differently, and how to verify whether a VPN or proxy changed what websites see.
Understanding Canvas Fingerprinting
A comprehensive guide about understanding canvas fingerprinting.
Tracking Pixels How They Work
A comprehensive guide about tracking pixels how they work.
The Truth About Incognito Mode
A comprehensive guide about the truth about incognito mode.
Social Engineering Tactics
A comprehensive guide about social engineering tactics.
Smart Home Privacy Risks
A comprehensive guide about smart home privacy risks.
Secure Browsing Habits: Practical Steps to Protect Your Digital Footprint
Essential habits and security practices for private web browsing, defending against phishing, browser fingerprinting, tracking scripts, and insecure Wi-Fi.
Search Engine Privacy
A comprehensive guide about search engine privacy.
Router Security Best Practices
A comprehensive guide about router security best practices.
Ransomware Prevention
A comprehensive guide about ransomware prevention.
Public Wifi Security Risks
A comprehensive guide about public wifi security risks.
Protecting Against Phishing
A comprehensive guide about protecting against phishing.
Preventing Webrtc Leaks
A comprehensive guide about preventing webrtc leaks.
Password Managers Explained
A comprehensive guide about password managers explained.
Mobile Device Tracking
A comprehensive guide about mobile device tracking.
Minimizing Digital Footprint
A comprehensive guide about minimizing digital footprint.
Managing App Permissions
A comprehensive guide about managing app permissions.
Malware Detection Tips
A comprehensive guide about malware detection tips.
Location Tracking On Mobile
A comprehensive guide about location tracking on mobile.
Is Tor Browser Safe
A comprehensive guide about is tor browser safe.
IPv4 vs IPv6 Privacy
A comprehensive guide about ipv4 vs ipv6 privacy.
Ip Address Basics
A comprehensive guide about ip address basics.
Iot Device Security
A comprehensive guide about iot device security.
Internet Speed and Privacy: Does Faster Internet Expose More Data?
Explore the relationship between internet connection speed, bandwidth, ISP throttling, VPN performance overhead, and online privacy.
How Websites Estimate Your Location and How to Limit It
Understand IP geolocation, browser location permission, time zone clues, Wi-Fi and mobile signals, and practical ways to reduce location exposure.
How to Test VPN Privacy Correctly
A careful VPN privacy checklist covering public IP, WebRTC candidates, browser fingerprints, DNS expectations, and false alarms.
How to Read Internet Speed Test Results
Learn what download, upload, ping, jitter, and test conditions mean when reading a browser-based internet speed test.
How to Protect Device Privacy Online Without Breaking the Web
A realistic checklist for reducing device exposure while keeping everyday sites, calls, maps, and payments working.
How To Prevent Dns Leaks
A comprehensive guide about how to prevent dns leaks.
How Browser Permissions Affect Your Privacy
Understand how location, camera, microphone, notification, and clipboard permissions change what a website can learn or do.
How Audio Fingerprinting Works
A comprehensive guide about how audio fingerprinting works.
Hardware Fingerprinting
A comprehensive guide about hardware fingerprinting.
Gdpr Explained Simply
A comprehensive guide about gdpr explained simply.
Font Fingerprinting
A comprehensive guide about font fingerprinting.
Firewalls Explained: How Network Firewalls Protect Your Devices
A comprehensive guide to understanding firewalls, how they filter network traffic, types of firewalls, and how to configure them for maximum digital security.
End To End Encryption
A comprehensive guide about end to end encryption.
Encrypted Email Services
A comprehensive guide about encrypted email services.
Do Not Track Requests
A comprehensive guide about do not track requests.
Dark Web Myths Debunked
A comprehensive guide about dark web myths debunked.
Clearing Cache And Cookies
A comprehensive guide about clearing cache and cookies.
Ccpa Privacy Rights
A comprehensive guide about ccpa privacy rights.
Browser Extensions Privacy
A comprehensive guide about browser extensions privacy.
Biometric Security Pros Cons
A comprehensive guide about biometric security pros cons.
Adblockers And Trackers
A comprehensive guide about adblockers and trackers.