Help CenterPrivacy & SecurityWebRTC leaks — what they are and how to prevent them
Privacy & Security

WebRTC leaks — what they are and how to prevent them

3 min read·Updated May 20, 2026

WebRTC can reveal your real IP even through a VPN. Here's how to block it.

WebRTC is a browser technology for video calls and real-time communication. It can bypass your VPN and expose your real IP address to websites — even when connected to a VPN.

Test for a WebRTC leak

  1. 1Connect to HorizonVPN
  2. 2Visit ipleak.net
  3. 3Look at the WebRTC section — if it shows your real IP (not the VPN IP), you have a leak

Fix by browser

  • HorizonVPN app: Enable WebRTC Leak Protection in Settings → Privacy
  • Firefox: visit about:config → set media.peerconnection.enabled to false
  • Chrome: install the "WebRTC Leak Prevent" extension
  • Brave: Settings → Privacy → WebRTC IP Handling Policy → Disable non-proxied UDP
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