It has come to our attention that the new WebRTC standard can be used to expose the real public IP of people connected through a VPN-service. In short WebRTC allows users to have video and audio communications directly in the browser without any plugins installed, IPs being exposed is an unfortunate side-effect of how this works.
Because of this, if you're using Firefox, Chrome or any other WebRTC-enabled browser, you might not be anonymous when using our service. For now Internet Explorer and Safari do not support WebRTC but they probably will in the future. We'll make sure to post updates on how to disable WebRTC in those browsers when the time comes.
The issue is most prevalent on Windows, but can occur on other operating systems as well, which is why we recommend that you disable WebRTC even if you're not using Windows.
Read more about how to check if you're affected and what you can do to protect yourself here.