IP Leak Affecting VPN Providers With Port Forwarding

Those who use VPNs at any capacity might want to check in with their providers to see if this affects them.

We have tested this with nine prominent VPN providers that offer port forwarding. Five of those were vulnerable to the attack and have been notified in advance so they could fix this issue before publication. However, other VPN providers may be vulnerable to this attack as we could not possibly test all existing VPN providers.

while using some VPN provider a user can always varify whether the service functions in a proper way. There are dozens of tools available online which provide that check for free. For example, 2ip.io is one of them. There is an anonimity check available on the website. Recently I was using a sevice of one VPN provider but unfortunately learned too late that it does not actually work(...