I’m just experimenting with the Tailscale-Service, and stumbled about a potential Security-Problem(?). I‘m originally using an Google-Account for Authentication. It happens that I confused my logins, and so used my Microsoft-Account for Authentication. Through this Authentication, it seems that I’m now part of a foreign network that I don’t know about. I’m able to see three foreign Hosts that I can also Ping and access Services on. The Admin-Panel shows me the Mail-Adress of the Accounts-Admin, that I already tried to contact unsuccessfully.
How is it possible that I’am part of a foreign network with a Login-Name that I did’t register for? The only thing the affected Network and I have in common, is that we both use the *.outlook.de-Domain for our Authentication. It seems unlikely that the Admin accidentally added my Mail-Adress to his private Network.
Does anyone know something about this?