Prospective surveillance targets are promptly notified and can appeal the request in court. Under Swiss law, all surveillance requests from foreign countries must go through a Swiss court and are subject to international treaties. Since the data centers are located in Switzerland, they are legally outside of US and EU jurisdiction. It maintains two data centers, one in Lausanne and another in Attinghausen (in the former K7 military bunker under 1,000 meters (3,300 ft) of granite rock) as a backup. Proton Mail maintains and owns its own server hardware and network in order to avoid utilizing a third party. Data centers Īrchitecture of a Proton Mail data center. They are also located in Switzerland because of its strict privacy laws. Location and security īoth Proton Mail and Proton VPN are located in Switzerland to avoid any surveillance or information requests from countries under the Fourteen Eyes, and/or under government surveillance laws like the U.S.'s Patriot Act or outside the bounds of law. As of 17 June 2021, it is only available to paid subscribers of Proton Mail. Released for public beta on 16 November 2020, Proton Drive is a cloud storage solution with end-to-end encryption. As of 14 April 2021, it is available to all users of Proton Mail.
Released for public beta on 30 December 2019, Proton Calendar is a fully encrypted calendar app.
By 6 July 2022, the company had a total of 1786 servers, located in 63 countries, with all new and preexisting servers operated and owned by Proton. On, Proton VPN reported that they had a total of 809 servers, located in 50 different countries, all owned and operated by itself. On 21 January 2020, Proton announced that Proton VPN would now be open source, to allow independent security experts to analyze it, becoming the first VPN service to do so, simultaneously announcing that an independent security audit had been conducted. It is accessible online through Tor, the clearnet, and its mobile applications. It has a no-logging policy, is located in Switzerland, and has DNS and WebRTC IP address leakage prevention. After over a year of crowdfunding, Proton Mail released Proton VPN on, a secure VPN service provider.