What Is a VPN in Plain English?
A VPN (Virtual Private Network) creates an encrypted tunnel between your device and the internet. Your traffic routes through the VPN company's servers before reaching websites. Your ISP sees only encrypted traffic going to a VPN server — nothing more.
When a VPN Actually Protects You
Public WiFi
Coffee shops, airports, hotels — on shared networks anyone can intercept unencrypted traffic. A VPN encrypts everything. This is the #1 reason to use a VPN.
Stop ISP Tracking
In the US, ISPs can legally sell browsing data to advertisers. A VPN prevents them from seeing which sites you visit.
Access Content Abroad
Route your connection through a home-country server to access your streaming services while traveling.
Corporate Remote Access
Many employers require a corporate VPN for internal systems. This is different from consumer VPNs.
What a VPN Does NOT Protect You From
Common misconception: A VPN does not make you anonymous, stop malware, block phishing, protect your home network, or stop website cookie tracking.
| Threat | VPN Helps? | What Actually Helps |
|---|---|---|
| Snooping on public WiFi | Yes ✓ | VPN |
| ISP tracking your browsing | Yes ✓ | VPN |
| Viruses & malware | No ✗ | Antivirus software |
| Phishing emails | No ✗ | Awareness + email filters |
| Cookie tracking | No ✗ | Browser privacy settings |
| Home network hacking | No ✗ | Strong passwords + WPA3 |
Best VPN Picks for 2025
Surfshark — Best Value
Unlimited simultaneous devices, passed independent audits, fast WireGuard protocol. ~$2.49/month on 2-year plans.
Affiliate link — commission at no extra cost. Details.
NordVPN — Most Trusted
Audited no-logs policy, 6 simultaneous devices, Threat Protection blocks ads and malware. ~$3.99/month.
Affiliate link — commission at no extra cost. Details.
At home only: a VPN is optional — focus on router security first. On public WiFi: always use a VPN.