Tailscale’s privacy policies are a concern. The network is built by the user on devices that you select. Tailscale operates on a zero trust network, meaning it encrypts all connections, even between these devices (that should be trustworthy). However, the service logs a lot of your data. It’s also located in Canada — a member of the Five Eyes Alliance. This means Tailscale may be obliged to share information that it gathers from you.