How VPN Works
🔍 Quick answer:
A VPN works by creating an encrypted tunnel between your device and a VPN server. Your data is encrypted before it leaves your device, travels through the tunnel, and is decrypted at the VPN server. The server then sends your request to its destination using its own IP address — so websites see the VPN server's IP, not yours. The return traffic follows the same path in reverse.
The VPN process explained
🔐 Step-by-step:
- Handshake: Your device and the VPN server agree on encryption keys
- Tunnel built: An encrypted connection is established
- Data encrypted: Your device encrypts all outgoing data (AES-256)
- Through the tunnel: Encrypted data travels to VPN server
- Decrypted & forwarded: VPN server decrypts and sends to destination
- Return path: Destination sends back to VPN server, which encrypts and sends to you
Encryption
Your data is scrambled using algorithms like AES-256. Without the key, it's unreadable gibberish.
Tunneling
Data is wrapped in packets that travel through a secure "tunnel" to the VPN server.
IP masking
The VPN server uses its own IP address to make requests, hiding your real IP.
💡 Pro tip: The encryption happens locally on your device before data ever reaches your ISP or Wi-Fi router. This means even if someone intercepts your data at the coffee shop, they only see encrypted gibberish — not your passwords or personal info.
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Similar questions
Terms you'll meet
- IP address
- Your device's public ID online.
- Encryption
- Scrambling data so only you can read it.
- No‑logs policy
- VPN doesn't store your activity.