How does this prove Obscura and Mullvad can't just both gather tracking data and then just combine it on demand?
This doesn't prove it. However, Obscura makes it so that there's no *single party* that if hacked or otherwise compromised would hurt your internet privacy.
You would go with this solution if you don't trust Tailscale or NordVPN, I guess.
I could be wrong but in Tailscale if you use Mullvad as an exit node, the traffic flows directly from your device to Mullvad's servers.
Whereas with Obscura, your traffic flows to the Obscura relay, then the Mullvad exit.
I'm under the impression that my personal device isn't the WireGuard endpoint for the Mullvad connection, Tailscale is.
Obviously seems to be an industry-wide problem, but I hope both you and Tailscale can consider alternative endpoints for those who don't want to rely on the Mullvad infrastructure.
Diversification of endpoint providers will help insolate your company from a collapse if Mullvad decides to sell out, and make you more attractive to former Mullvad customers turned off by their Co-Founder's investment of their privacy dollars into extreme right-wing politics.
As far as I know, they don't plan to part ways with the "great replacement theory" executive staff being paid enough to be the highest contributor to the Swedish far-right party Örebropartiet. You have to question whether their highest-paid staff's loyalty to far-right politics influences Mullvad decisions and future partnerships.
Cross the Örebropartiet, and you might be issuing refunds a year from now.
Other than the obvious hassle? XP
If you connect to Mullvad over NordVPN:
- You're giving both Mullvad and Nord some payment information (with Obscura you only give that to us, Mullvad has no idea)
- You don't get our QUIC-based obfuscation (see more here: https://obscura.com/blog/bootstrapping-trust/)