Proton AG

Proton Mail was launched in public beta on May 16, 2014, by a group of scientists who met at CERN.^[6][7] The company was initially financed through a community crowdfunding effort and initially incorporated as Proton Technologies AG in July 2014 and subsequently shortened to Proton AG.^[8] In June 2017, the company launched its second product, Proton VPN.

On April 8, 2022, Proton acquired French email aliasing startup SimpleLogin.^[9][10]

On April 14, 2022, Proton Technologies AG shortened its name to Proton AG as part of its unifying rebrand.^[8]

On May 10, 2022, Proton AG became a World Economic Forum Partner.

On May 25, 2022, Proton AG unified their products under an optional single subscription known as Proton Unlimited for US$9.99. The user interfaces and logos for its services were also revamped to have a more consistent design.^[11][12]

On April 18, 2023, Proton had reached 100 million accounts.

On April 12, 2024, Proton acquired note taking app Standard Notes.^[13]

Proton's founder publicly announced on June 17, 2024, that Proton AG is now majority-owned by the Proton Foundation.^[14] The current members of the board of trustees are Andy Yen, Antonio Gambardella, Carissa Véliz, Tim Berners-Lee and Dingchao Lu. ^[15]

Proton Mail was released as a public beta on 16 May 2014^[16] as an end-to-end encrypted email service after a year of crowdfunding. Proton Mail 2.0 was released 14 August 2015, with open source front-end clients and a rewritten codebase.^[17]

After over a year of crowdfunding, Proton Mail released Proton VPN on 22 May 2017, a secure VPN service provider.^[18] It has a no-logging policy, is located in Switzerland, and has DNS and WebRTC IP address leakage prevention. It is accessible online through Tor,^[19] the clearnet, and its mobile applications.

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.^[20][21]

On 1 May 2020, Proton VPN reported that they had a total of 809 servers, located in 50 different countries, all owned and operated by itself.^[22][23] 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.^[24]

Released for public beta on 30 December 2019, Proton Calendar is a fully encrypted calendar app. As of 14 April 2021, it is available to all Proton users.^[25][26][27]

Released for public beta on 16 November 2020, Proton Drive is a cloud storage solution with end-to-end encryption. As of 22 September 2022, it is available to all Proton users.^[28][29][30]

 

SimpleLogin is an open source service that allows users to use email aliases to protect their privacy online and protect their main inbox from spam and phishing attacks. The service allows users to create and use multiple email aliases to receive email anonymously and send email from their aliases. SimpleLogin also provides additional security features such as PGP encryption and two-factor authentication. The service is fully open source and can be used on a variety of platforms including the web, mobile apps and browser extensions.

SimpleLogin was acquired by Proton in early 2022.^[31][32] SimpleLogin functionality is integrated into Proton Mail, Proton Pass, and subtly in the whole ecosystem, allowing the Proton community to hide their email addresses with SimpleLogin. Proton has stated SimpleLogin will continue to function as a standalone service and the SimpleLogin team will continue to add new features and functionality.^[33]

Released for public beta on 20 April 2023,^[34] Proton Pass is a cloud based password manager solution with end-to-end encryption. As of June 28, 2023, it is available to all Proton users.^[35] It also allows you to generate email aliases via SimpleLogin, however uses its own domains instead of the SimpleLogin ones.

Standard Notes is an end-to-end encrypted note-taking application, which was announced to be acquired by Proton on April 10, 2024.^[36][37] The application and service was to be integrated into Proton's offering in the following months.^[37]

Proton Wallet is an open-source cryptocurrency wallet with end-to-end encryption to ensure that no one else has access to the wallet encryption keys.^[38]

Both Proton Mail and Proton VPN are located in Switzerland and Swiss privacy laws apply.^[39]

Proton AG complies with law enforcement requests to help identify Proton users if the request is valid under Swiss law, as in the case of a climate activist sought by French authorities in 2021.^[40] While product-related data is usually end-to-end encrypted or not stored, certain account information is able to be passed to authorities with a valid court order, like client IP addresses (if logging is enabled) or recovery email.^[41]

 

Proton Mail maintains and owns its own server hardware and network in order to avoid utilizing a third party. 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.^[42][43][44]

Each data center uses load balancing across web, mail, and SQL servers, redundant power supply, hard drives with full disk encryption, and exclusive use of Linux and other open-source software.^[45] In December 2014, Proton Mail joined the RIPE NCC in an effort to have more direct control over the surrounding Internet infrastructure.^[46]

Proton AG was initially funded through crowdfunding and now is through its paid subscription.^[47] The company has been partially funded by FONGIT.^{[48][49][50][51]} (the Fondation Genevoise pour l'Innovation Technologique) and the European Commission.^[52]

In March 2021, Proton confirmed that the shares held by Charles Rivers Ventures had been transferred to FONGIT.^[53]

Since June 2024, the majority of Proton AG is owned by the Proton Foundation.^[54] Proton is headquartered in Plan-les-Ouates, Switzerland.^[55][49][50]