Using a VPN might not protect you as well as you think

VPNs are probably the most essential tools out there for maintaining ones privacy and security on the Internet, as well as bypassing content filters. However, as far as privacy and security are concerned, a vulnerability known as “IPv6 leakage” can make even the best VPNs out there pretty much worthless, as this leakage can allow personal information to leak out. According to a recent study, 11 out of the 14 most popular VPNs out there suffer from this problem.