All ProtonVPN apps are now open source and audited

[Mackguil]

ProtonVPN changed this by delivering an unparalleled level of transparency and accountability. We have done things differently from the start: We have a strict no-logs policy, we’re based in Switzerland, regulated by some of the world’s strongest privacy laws, we have a deep security background, and we have even opened up our technology for inspection by Mozilla.

Making all of our applications open source is therefore a natural next step. As former CERN scientists, publication and peer review are a core part of our ethos. We are also publishing the results of independent security audits covering all of our software.

Source: https://protonvpn.com/blog/open-source/