Privacy violations by free VPN service providers
VPNs are generally regarded as a way to bypass censorship, both in developed and developing nations, and the concept of free VPNs has been generally alluring for two key reasons: First, privacy should be a basic human right, and it shouldn’t cost extra to enjoy this basic right. However, research is showing that practically all major free VPN service provider sell user data or violate user privacy in some way.
Full article: Privacy Violations by free VPN service providers