Proton AG
Swiss technology company focused on digital privacy
Proton AG is a Swiss for-profit technology company offering privacy-focused online services and software. It is majority owned by the non-profit Proton Foundation as a shareholder. The company was formerly known as Proton Technologies.
Products
Proton Mail
Proton Mail was released as a public beta on 16 May 2014 as an end-to-end encrypted email service after a year of crowdfunding. Proton Mail 2.0 was released on 14 August 2015, with open-source front-end clients and a rewritten codebase.
Proton VPN
After over a year of crowdfunding, Proton Mail released Proton VPN on 22 May 2017, a secure VPN service provider. It has a no-logging policy, DNS and WebRTC IP address leakage prevention. It is accessible online through Tor, 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. 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 the company.
The public source identifies “Proton AG” as swiss technology company focused on digital privacy. This brief keeps that definition visible, then builds a research path around Proton, Swiss and technology.
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A short description can identify a subject without explaining its stakes. For “Proton AG”, the useful work is to connect “swiss technology company focused on digital privacy” to the records capable of establishing context and consequence.
Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q30537036. VIAF identifies the subject as 158733959. 4 of 15 selected statements include explicit references; 12 carry qualifiers and 2 use preferred rank. The first chronological checks are 2014, 2015, 2017 and 2020.
Current terminology should not be projected backward without checking the classification used when the underlying evidence was created. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Proton AG” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.