Tailscale vs Mullvad: Privacy Comparison
Here we put Tailscale head-to-head with Mullvad across the six privacy factors that matter most: their data collection practices, encryption implementation, third-party data sharing, user privacy controls, transparency, and historical track record. While both products address similar requirements, the philosophies they bring to protecting users diverge sharply. Our assessment finds that Mullvad provides a noticeably better overall privacy experience, although neither service is without trade-offs that deserve a careful, detailed look.
The Verdict at a Glance
Before the dimension-by-dimension breakdown, here is the summary our scoring produced. Across the six privacy dimensions we score, Mullvad finishes ahead of Tailscale, 40/60 to 34/60. That total reflects a privacy comparison in which one service is consistently the more privacy-respecting choice, even though both cover the same functional ground.
Data Collection produced the widest separation between the two, with Mullvad ahead 4 to 5 out of 10. Data Collection is where they come closest, a mere 1-point gap (4 vs 5 out of 10). The full breakdown that follows shows where each point was won or lost.
What Gets Collected
Every privacy assessment starts with data collection. How much a service gathers, stores, and processes about its users is what ultimately drives the privacy risk of using it. Mullvad takes a leaner approach here, capturing only the data strictly required to make the service work. Its rival pulls in a wider net of information -- behavioral patterns, device identifiers, and usage analytics that go well past what the core features actually need. Our marks were Tailscale 4/10 and Mullvad 5/10 in this area. What separates them is not merely how much is gathered but why it is gathered and whether it is truly needed.
Encryption Standards
Encryption guards user data as it moves and while it sits at rest, and how well it is built differs enormously from one service to the next. Mullvad puts tougher encryption in place, with sturdier protocols shielding data in transit and stronger safeguards for what is stored. The two implementations part ways on coverage (which data actually gets encrypted), on strength (which algorithms and key lengths back it up), and on whether end-to-end encryption is in play (which keeps even the provider from reading user content). For encryption, Tailscale scored 5/10 while Mullvad scored 6/10.
Who Else Gets Your Data
A service's willingness to hand data to outside parties is a make-or-break privacy factor. That covers advertising networks, analytics providers, business partners, and what happens when governments come asking. Mullvad keeps a tighter lid on who can reach user data. These sharing habits shape security as much as privacy, since every extra party granted access becomes one more way a breach could happen. Scores: Tailscale 6/10, Mullvad 7/10.
What You Can Manage Yourself
The availability and effectiveness of user-facing privacy controls determine how much agency individuals have over their own data. This includes settings for data collection opt-out, download and deletion capabilities, granular permission controls, and the ease with which users can exercise their rights under applicable privacy regulations. Mullvad provides more comprehensive and accessible privacy controls. Scores: Tailscale 7/10, Mullvad 8/10.
Openness About Data Practices
At its core, transparency is about how clearly a service tells users what happens to their data. That means how understandable the privacy policy is, whether transparency reports exist, how promptly privacy inquiries are addressed, and whether changes to policy are flagged proactively. Mullvad is the stronger performer on transparency overall. Without clear and accessible privacy communication, informed consent and trust are impossible. Scores: Tailscale 8/10, Mullvad 9/10.
Track Record Over Time
A service's history of privacy incidents, regulatory actions, and responses to vulnerabilities provides important context. Mullvad has a stronger historical record on privacy, with fewer incidents and more responsible handling of the issues that have arisen. Past behavior is often the best predictor of future privacy practices. Scores: Tailscale 4/10, Mullvad 5/10.
The Final Verdict
Adding everything up, our full analysis lands Tailscale at 34/60 and Mullvad at 40/60. For privacy, the overall winner is Mullvad. The two cover much the same functional ground, but the winner takes a more privacy-respecting stance across the dimensions that count for the most. Even so, no service is flawless, and whichever option you pick, you should always tune its privacy settings deliberately. We suggest pairing your choice with extra privacy tools, a VPN, DNS-level ad blocker, and privacy-focused browser, so you end up with a well-rounded privacy posture. And if your threat model demands the very highest level of privacy, it is worth asking whether an even more privacy-focused alternative exists in this category beyond the two compared here.