Blog — Security & VPN Articles
Expert guides on VPN technology, online privacy, phishing protection, malware prevention, and public WiFi safety. Written by the Vizoguard security team.
VPN Fundamentals
What Is a VPN?
Learn what a Virtual Private Network is, how it encrypts your traffic, and why millions use one every day.
How Does a VPN Work?
A step-by-step look at VPN tunneling, encryption protocols, and how your data travels securely across the internet.
Do You Need a VPN?
Find out whether a VPN is right for your situation — remote work, travel, streaming, or everyday privacy.
Is a VPN Safe?
What makes a VPN trustworthy? No-logs policies, audit records, and the questions you should ask before you subscribe.
VPN Comparisons
VPN vs Proxy
Proxies hide your IP but leave your traffic unencrypted. Understand the key differences and when each tool is the right choice.
VPN vs Antivirus
VPNs protect your network traffic; antivirus protects your device. Learn why you need both — and how they work together.
Security Guides
Public WiFi Security
Airports, hotels, coffee shops — public WiFi is a hacker's playground. Here is how to stay safe on any network.
What Is Malware?
Viruses, ransomware, spyware, and trojans explained. Learn how malware spreads and how to prevent infection.
How to Block Phishing
Phishing attacks account for 80% of data breaches. Spot the warning signs and use the tools that block them automatically.
How to Hide Your IP
Your IP address reveals your location and identity. Explore the most effective methods to mask it — from VPNs to Tor.
Privacy Deep Dives
Is ChatGPT Safe?
What data AI chatbots collect, how OpenAI stores your conversations, and how to use ChatGPT more privately.
What Google Knows About You
Search history, location tracking, Gmail scanning, YouTube habits — a full audit of what Google collects and how to stop it.
TikTok Privacy
What TikTok really collects, the ByteDance connection, and what regulators worldwide are doing about it.
Is WhatsApp Really Encrypted?
End-to-end encryption explained, plus the metadata WhatsApp still collects and shares with Meta.
YouTube Privacy
How YouTube tracks your watch history, feeds the algorithm, and targets ads — plus how to limit it.
Does Amazon Track You?
From purchase history to Alexa recordings to Kindle reading habits — what Amazon knows and how to limit it.
Is Discord Safe?
IP exposure risks, voice chat privacy, DM encryption gaps, and how to protect yourself on Discord.
Is Roblox Safe for Kids?
A parent's guide to Roblox data collection, chat risks, in-game scams, and parental controls.