Vexonik
Vexonik
Privacy & Security··2 min read

Why You Should Always Use a VPN on Public Wi-Fi

Coffee shops, airports, hotels — public Wi-Fi is convenient but dangerously insecure. Here's exactly what attackers can see and how a VPN protects you.

#public-wifi#security#privacy#tips
Why You Should Always Use a VPN on Public Wi-Fi

The Hidden Dangers of Public Wi-Fi

Public Wi-Fi networks at airports, coffee shops, and hotels are notoriously insecure. When you connect to an open network, anyone else on that network can potentially:

  • Intercept your unencrypted traffic — see which websites you visit, what you type in non-HTTPS forms
  • Perform a man-in-the-middle attack — position themselves between you and your destination server
  • Create an "evil twin" network — set up a fake Wi-Fi hotspot with a name like "Airport Free WiFi" to capture your traffic
  • Session hijack — steal authentication cookies to take over your logged-in sessions

What a VPN Does

When you connect through Vexonik VPN, all your traffic is encrypted with AES-256-GCM before it leaves your device. Even if an attacker is sniffing the network, they see only encrypted gibberish.

Your data goes:

Your device → Encrypted tunnel → Vexonik server → Destination website

The attacker on the coffee shop Wi-Fi sees:

Your device → ??? (encrypted) → ???

What's Protected and What Isn't

A VPN does protect:

  • All HTTP and HTTPS traffic
  • DNS queries (no DNS leaks)
  • App traffic (email, messaging, etc.)
  • Your real IP address from websites you visit

A VPN does not protect against:

  • Malware already on your device
  • Phishing attacks (you clicking a fake link)
  • Tracking via cookies or browser fingerprinting (use a privacy-focused browser alongside your VPN)

Best Practices

  1. Connect to the VPN before connecting to public Wi-Fi, not after.
  2. Enable the kill switch in Vexonik settings — this blocks all internet traffic if the VPN connection drops unexpectedly.
  3. Avoid accessing banking or sensitive accounts on public Wi-Fi even with a VPN, if possible.
  4. Check the network name before connecting — ask staff for the exact Wi-Fi name to avoid evil twin networks.

Stay vigilant out there.

Tags

#public-wifi#security#privacy#tips