When Should You Use a VPN?
A VPN is especially useful on public Wi-Fi networks (cafes, airports, hotels), where traffic can be intercepted by anyone on the same network. By encrypting all your data before it leaves your device, a VPN ensures that even if an attacker is monitoring the network, they can only see encrypted gibberish — not your passwords, messages, or browsing activity.
VPNs also help mask your IP address from websites and your internet service provider (ISP), which is useful for privacy. Your ISP can see every website you visit without a VPN, and this data can be sold to advertisers or requested by governments. A VPN hides your browsing from your ISP, replacing your real IP with the VPN server's address.
However, it's important to understand what a VPN does not do. A VPN does not make you completely anonymous — the VPN provider can still see your traffic (which is why choosing a trustworthy provider is critical). It also doesn't protect against all threats: you can still be phished, download malware, or have your accounts compromised if your credentials are stolen.
How VPNs Work
When you connect to a VPN, your device creates an encrypted tunnel to a VPN server. All your internet traffic travels through this tunnel before reaching its destination. Here's what happens technically:
- Encryption: Your data is encrypted on your device using protocols like WireGuard, OpenVPN, or IKEv2. Even if someone intercepts the data in transit, they see only encrypted content that would take millions of years to decrypt.
- Tunneling: The encrypted data travels through a secure "tunnel" to the VPN server. The tunnel prevents anyone on your local network (including the Wi-Fi operator) from seeing the contents of your traffic.
- IP masking: The VPN server forwards your requests to the internet using its own IP address. Websites see the VPN server's IP, not yours — providing a layer of anonymity.
- Response routing: When websites respond, the data goes back to the VPN server, which encrypts it and sends it through the tunnel to your device.
Comparison: NordVPN, ExpressVPN, and ProtonVPN
Pros
- Large server network spanning 60+ countries with over 5,800 servers
- Excellent value for money on long-term plans (as low as $3.49/month on 2-year plan)
- Advanced features: Threat Protection (ad/malware blocking), Double VPN, Meshnet
- Published independent security audits confirming no-log policy
- NordLynx protocol (based on WireGuard) delivers fast speeds with strong security
- Dedicated IP option for users who need a consistent IP address
Cons
- Some speed inconsistency on heavily loaded servers during peak hours
- Interface can feel complex for beginners with many advanced options
- Based in Panama — while privacy-friendly, some users prefer Swiss or Icelandic jurisdiction
Best for: Users seeking the best balance between price, features, and reliability. NordVPN is an excellent all-around choice with the most comprehensive feature set.
Pros
- Consistently fast speeds across servers worldwide — among the fastest VPNs available
- Simple, intuitive interface that's easy for anyone to use — connect with one click
- Excellent for streaming, gaming, and general browsing without noticeable slowdowns
- Strict no-log policy with favorable jurisdiction (British Virgin Islands)
- Proprietary Lightway protocol offering speed comparable to WireGuard
- TrustedServer technology — servers run entirely on RAM, meaning all data is wiped on reboot
Cons
- Higher price than competitors (approximately $8.32/month on yearly plan)
- Fewer extra features compared to NordVPN (no built-in ad blocker)
- Only 5 simultaneous device connections (vs. 6+ for competitors)
- Acquired by Kape Technologies, which has a controversial history
Best for: Users who prioritize speed, simplicity, and a premium experience. ExpressVPN is ideal if you want the fastest, most hassle-free VPN and don't mind paying a bit more for it.
Pros
- Developed by the team behind ProtonMail — deep commitment to privacy
- Functional free plan with no data caps (limited to servers in 3 countries, 1 device)
- Fully open source and independently audited — all apps' code is publicly available
- Swiss jurisdiction — among the world's strongest privacy laws
- Secure Core feature routes traffic through privacy-friendly countries before exit
- No advertising, no tracking — funded by users, not data monetization
Cons
- Free plan has speed limitations and limited server selection
- Smaller server network compared to NordVPN and ExpressVPN
- Slightly higher latency on some long-distance connections
- Streaming performance can be inconsistent compared to dedicated streaming VPNs
Best for: Users who prioritize privacy and transparency above all else. ProtonVPN is the best choice for privacy-focused users, and the free plan is the most trustworthy free VPN option available — perfect for testing before committing.
VPN Best Practices
Having a VPN is just the first step. Using it effectively maximizes your protection:
- Always enable on public Wi-Fi: Make it a habit to connect to your VPN before doing anything on a public network.
- Enable the kill switch: This feature blocks all internet traffic if the VPN connection drops, preventing your real IP from being exposed.
- Choose the nearest server: For best speeds, connect to a server geographically close to you unless you need a specific country.
- Use modern protocols: WireGuard (or NordLynx/Lightway) offers the best balance of speed and security. Avoid older protocols like PPTP.
- Don't rely on VPN alone: A VPN is one layer of defense. Combine it with strong passwords, 2FA, and safe browsing habits.