Proton Mail (English Wikipedia)

Halfacree, Gareth (July 1, 2014). "ProtonMail hit by PayPal account freeze". bit-tech. Archived from the original on November 20, 2018. Retrieved October 19, 2015.

competitivedigitalmarkets.eu

"Coalition for Competitive Digital Markets". Coalition for Competitive Digital Markets. October 21, 2021. Archived from the original on May 29, 2022. Retrieved May 28, 2022.

dailydot.com

Howell O'Neill, Patrick (July 1, 2014). "PayPal freezes account of email encryption startup Proton Mail [Update]". The Daily Dot. Archived from the original on June 18, 2019. Retrieved October 19, 2015.

doi.org

Saxena, Kumkum; Rajdev, Dev; Bhatia, Divesh; Bahl, Manav (June 25–27, 2021). "ProtonMail: Advance Encryption and Security". 2021 International Conference on Communication information and Computing Technology (ICCICT). pp. 1–6. doi:10.1109/ICCICT50803.2021.9510041. ISBN 978-1-6654-0430-3. S2CID 237000409.

fifthdomain.com

Lynch, Justin (July 2, 2018). "Proton Mail CEO: 'The attacks are continuing'". Fifth Domain. Sightline Media Group. Archived from the original on May 4, 2019. Retrieved July 3, 2018.

github.com

"iOS mobile app repository". github.com/ProtonMail/ios-mail. Proton AG. Archived from the original on November 1, 2019. Retrieved May 25, 2024.
"Android mobile app repository". github.com/ProtonMail/android-mail. Proton AG. Archived from the original on May 26, 2024. Retrieved May 25, 2024.
"Proton bridge repository". github.com/ProtonMail/proton-bridge. Proton AG. Archived from the original on April 17, 2020. Retrieved May 25, 2024.
"LICENSE". github.com/ProtonMail/WebClient. Proton AG. December 25, 2021. Archived from the original on December 25, 2021. Retrieved May 25, 2024.

gizmodo.com

"Proton Mail Unveils an Overdue Makeover and New Features". Gizmodo. June 8, 2021. Archived from the original on April 7, 2022. Retrieved July 6, 2021.

home.cern

O'Luanaigh, Cian (May 23, 2014). "CERN inspires entrepreneurs for email encryption". CERN. Archived from the original on May 16, 2020. Retrieved May 22, 2020.

iacr.org

eprint.iacr.org

Kobeissi, Nadim (September 6, 2021). "An Analysis of the ProtonMail Cryptographic Architecture" (PDF). The Cryptology ePrint Archive. Archived (PDF) from the original on November 17, 2022. Retrieved November 2, 2021.

infosecurity-magazine.com

"Über-Secure ProtonMail Beta Maxes Out Servers in Just 60 Hours". Infosecurity Magazine. May 22, 2014. Archived from the original on November 7, 2018. Retrieved October 19, 2015.

interfax.ru

"Proton Mail не получала просьб о помощи в поисках лжеминеров". Interfax.ru (in Russian). January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.

itpro.com

Graw, Michael (October 5, 2022). "ProtonMail review". IT Pro. Archived from the original on August 12, 2023. Retrieved August 12, 2023.

kommersant.ru

"Почтовый сервис Proton Mail заблокировали в России из-за сообщений о минированиях". www.kommersant.ru (in Russian). January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.

lovieawards.com

"The 6th Annual Lovie Award Winners Announced". The Lovie Awards (Press release). International Academy of Digital Arts and Sciences. September 27, 2016. Archived from the original on August 12, 2023. Retrieved August 12, 2023.

winners.lovieawards.com

"2017 Winners Gallery". The Lovie Awards. International Academy of Digital Arts and Sciences. 2017. Archived from the original on August 12, 2023. Retrieved August 12, 2023.

nzz.ch

Silva, Gioia da (August 3, 2021). "«Wenn du noch einmal das Wort Impfpflicht in den Mund nimmst, schlage ich dir und deiner Frau die Zähne aus»: Der Schweizer Service ProtonMail wird immer wieder für Drohungen missbraucht" ["If you say the word compulsory vaccination again, I'll knock your and your wife's teeth out": The Swiss service Proton Mail is repeatedly misused for threats]. Neue Zürcher Zeitung (in Swiss High German). Archived from the original on May 13, 2024. Retrieved September 10, 2021.

omgubuntu.co.uk

Sneddon, Joey (March 14, 2024). "Proton Mail's New Desktop App is Available for Linux". OMG! Ubuntu. Archived from the original on April 1, 2024. Retrieved April 1, 2024.

proton.me

"Privacy policy". Archived from the original on September 5, 2021. Retrieved May 28, 2022.
Yen (April 18, 2023). "There are now over 100 million Proton Accounts". proton.me. Archived from the original on April 18, 2023. Retrieved December 18, 2023.
"Why Proton Mail is in Switzerland". Proton. May 19, 2014. Archived from the original on July 6, 2022. Retrieved May 28, 2022.
"Fighting Censorship with Proton Mail Encrypted Email Over Tor". Proton Mail Blog. January 19, 2017. Archived from the original on May 28, 2022. Retrieved January 20, 2017.
"Proton Mail goes Open Source with version 2.0". Proton Mail Blog. August 13, 2015. Archived from the original on May 28, 2022. Retrieved January 31, 2016.
"Proton Mail iOS app is open source". Proton Mail Blog. October 30, 2019. Archived from the original on May 28, 2022. Retrieved December 12, 2019.
"The Proton Mail Android app is open source". Proton Mail Blog. April 23, 2020. Archived from the original on May 28, 2022. Retrieved April 24, 2020.
"Proton Mail Bridge is open source on macOS, Windows, and Linux". Proton Mail Blog. April 15, 2020. Archived from the original on May 28, 2022. Retrieved April 24, 2020.
"Proton Mail raises a record $500,000 through crowdfunding to disrupt the state of email communications". Proton. July 29, 2014. Archived from the original on December 3, 2023. Retrieved May 13, 2024. Proton Mail's crowdfunding campaign has surged past $500,000 with the support of over 10,000 backers
Yen, Andy (June 30, 2014). "Paypal Freezes Proton Mail Campaign Funds". Proton Mail Blog. Archived from the original on May 28, 2022. Retrieved October 19, 2015.
"Meet the Proton team". Proton. May 25, 2022. Archived from the original on October 10, 2023. Retrieved May 28, 2022.
"Announcement: Proton Mail has launched worldwide!". Proton Mail Blog. March 17, 2016. Archived from the original on May 28, 2022. Retrieved July 21, 2016.
"Introducing Proton Mail Contacts – the world's first encrypted contacts manager". Proton Mail Blog. November 21, 2017. Archived from the original on May 28, 2022. Retrieved May 28, 2022.
M., Irina (December 6, 2017). "Introducing Proton Mail Bridge, email encryption for Outlook, Thunderbird, and Apple Mail". Proton Mail Blog. Archived from the original on May 28, 2022. Retrieved December 16, 2017.
"Apophis Squad member responsible for attacks against Proton Mail has been arrested - Proton Mail Blog". Proton Mail Blog. September 6, 2018. Archived from the original on May 4, 2019. Retrieved September 28, 2018.
"Introducing Address Verification and Full PGP Support - Proton Mail Blog". Proton Mail Blog. July 25, 2018. Archived from the original on May 28, 2022. Retrieved September 28, 2018.
Yen, Andy (November 7, 2022). "Proton and SimpleLogin are joining forces". Proton. Archived from the original on June 17, 2023. Retrieved December 14, 2023. We have been following SimpleLogin closely for a long time as many Proton Mail users utilize it to prevent their Proton Mail addresses from being leaked to spammers
"Introducing the Proton Mail desktop app". Proton. March 14, 2024. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
"Proton and Standard Notes are joining forces". Proton. April 10, 2024.
"Proton is transitioning towards a non-profit structure". Proton. June 17, 2024. Retrieved July 24, 2024.
"Introducing Proton Scribe, a private writing assistant that writes and proofreads emails for you". Proton. July 18, 2024. Retrieved December 8, 2024.
"Introducing Proton Wallet – a safer way to hold Bitcoin". Proton. July 24, 2024. Retrieved July 24, 2024.
Yen, Andy (September 22, 2015). "Proton Mail adds Facebook PGP integration". Proton Mail Blog. Archived from the original on May 28, 2022. Retrieved October 19, 2015.
"Proton Mail Security Details". Proton Mail Security. January 31, 2016. Archived from the original on October 11, 2023. Retrieved January 31, 2016.
Sustaining Proton’s mission over time |https://proton.me/blog/sustaining-mission-over-time
Yen, Andy (December 17, 2014). "Proton Mail RIPE announcement". Proton Mail Blog. Archived from the original on June 7, 2022. Retrieved July 16, 2021.
"Proton Privacy Policy". proton.me. May 25, 2022. Archived from the original on September 5, 2021. Retrieved September 10, 2021.
"Is Proton Mail blocked in Belarus?". Proton Mail Blog. November 15, 2019. Archived from the original on November 17, 2019. Retrieved September 14, 2022.
"Transparency Report". proton.me. September 10, 2021. Archived from the original on August 25, 2022. Retrieved September 10, 2021.
"Important clarifications regarding arrest of climate activist". proton.me. September 6, 2021. Archived from the original on May 28, 2022. Retrieved September 10, 2021.

protonmail.com

"Securitum Security Report" (PDF). Proton mail blog. Archived from the original (PDF) on July 5, 2021.

reddit.com

"Proton Mail responds on Reddit". April 2, 2019. Archived from the original on November 14, 2020. Retrieved September 24, 2020. We don't plan to open source the back-end code, because it doesn't add trust (users can't verify what code is running on the backend) and doing so would given away information about how we do anti-spam and anti-abuse.
"We are rolling out technologies which will help us better overcome attempts to block Proton Mail". Reddit. March 13, 2020. Archived from the original on November 14, 2020. Retrieved March 14, 2020.

reuters.com

Tsydenova, Nadezhda; Ivanova, Polina (January 29, 2020). Heinrich, Mark (ed.). "Russia blocks encrypted email service Proton Mail". Reuters. Archived from the original on January 30, 2020. Retrieved January 30, 2020.
Shields, Michael (October 22, 2021). "Secure email group Proton wins Swiss appeal over surveillance rules". Reuters. Archived from the original on October 17, 2023. Retrieved May 26, 2022.

ria.ru

"Россия не обращалась за информацией о "минерах", заявили в Proton Mail". РИА Новости (in Russian). January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.

semanticscholar.org

api.semanticscholar.org

Saxena, Kumkum; Rajdev, Dev; Bhatia, Divesh; Bahl, Manav (June 25–27, 2021). "ProtonMail: Advance Encryption and Security". 2021 International Conference on Communication information and Computing Technology (ICCICT). pp. 1–6. doi:10.1109/ICCICT50803.2021.9510041. ISBN 978-1-6654-0430-3. S2CID 237000409.

simplelogin.io

"SimpleLogin joins the Proton family". SimpleLogin. April 8, 2022. Archived from the original on December 5, 2023. Retrieved December 14, 2023.

stackexchange.com

security.stackexchange.com

Stockman, Jason (May 22, 2014). "How are Proton Mail keys distributed?". Stack Exchange. Archived from the original on November 15, 2018. Retrieved October 19, 2015.

startupticker.ch

"Proton Mail has raised $2M USD". startupticker.ch. March 18, 2015. Archived from the original on June 14, 2022. Retrieved October 19, 2015.

techcrunch.com

Sawers, Paul (March 14, 2024). "Proton Mail desktop app officially launches, but remains for premium subscribers only". TechCrunch. Archived from the original on April 1, 2024. Retrieved April 1, 2024.

techradar.com

Khalili, Joel (May 25, 2022). "Proton Mail rebrands as Proton: VPN, email, calendar, cloud storage and password manager now available under one bundle". TechRadar. Archived from the original on June 23, 2022. Retrieved June 23, 2022.
Athow, Desire (June 16, 2023). "Proton Mail review". TechRadar. Archived from the original on August 12, 2023. Retrieved August 12, 2023.

techspot.com

"Proton Mail provided user data that led to an arrest in Spain". TechSpot. May 14, 2024. Archived from the original on May 14, 2024. Retrieved May 14, 2024.

theguardian.com

"Proton Mail founder vows to fight Australia's eSafety regulator in court rather than spy on users". The Guardian. December 15, 2023. Retrieved December 23, 2024.

thehackernews.com

Khandelwal, Swati (May 26, 2014). "Proton Mail: 'NSA-Proof' End-to-End Encrypted Email Service". The Hacker News. Archived from the original on November 7, 2018. Retrieved October 19, 2015.

theintercept.com

"Proton Mail Says It's "Politically Neutral" While Praising Republican Party". The Intercept. January 28, 2025.

themoscowtimes.com

"Russia Blocks Encrypted Swiss Email Service Proton Mail". The Moscow Times. Reuters. January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.

theregister.co.uk

Leyden, John (November 5, 2015). "Proton Mail still under attack by DDoS bombardment". The Register. Archived from the original on November 15, 2018. Retrieved November 5, 2015.
Martin, Alexander J. (January 19, 2017). "Proton Mail launches Tor hidden service to dodge totalitarian censorship". The Register. Archived from the original on January 20, 2017.

theverge.com

Khalid, Amrita (December 14, 2023). "Proton Mail finally gets a desktop app for encrypted email and calendar". The Verge. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
"Proton just launched a privacy-focused alternative to Google Docs". July 3, 2024.

vice.com

motherboard.vice.com

"ProtonMail, the Easy-to-Use Encrypted Email Service, Opens Up to the Public". March 17, 2016. Archived from the original on July 2, 2016. Retrieved March 18, 2016.

web.archive.org

"Privacy policy". Archived from the original on September 5, 2021. Retrieved May 28, 2022.
Yen (April 18, 2023). "There are now over 100 million Proton Accounts". proton.me. Archived from the original on April 18, 2023. Retrieved December 18, 2023.
"iOS mobile app repository". github.com/ProtonMail/ios-mail. Proton AG. Archived from the original on November 1, 2019. Retrieved May 25, 2024.
"Android mobile app repository". github.com/ProtonMail/android-mail. Proton AG. Archived from the original on May 26, 2024. Retrieved May 25, 2024.
"Proton bridge repository". github.com/ProtonMail/proton-bridge. Proton AG. Archived from the original on April 17, 2020. Retrieved May 25, 2024.
"LICENSE". github.com/ProtonMail/WebClient. Proton AG. December 25, 2021. Archived from the original on December 25, 2021. Retrieved May 25, 2024.
"Why Proton Mail is in Switzerland". Proton. May 19, 2014. Archived from the original on July 6, 2022. Retrieved May 28, 2022.
O'Luanaigh, Cian (May 23, 2014). "CERN inspires entrepreneurs for email encryption". CERN. Archived from the original on May 16, 2020. Retrieved May 22, 2020.
"ProtonMail, the Easy-to-Use Encrypted Email Service, Opens Up to the Public". March 17, 2016. Archived from the original on July 2, 2016. Retrieved March 18, 2016.
"Fighting Censorship with Proton Mail Encrypted Email Over Tor". Proton Mail Blog. January 19, 2017. Archived from the original on May 28, 2022. Retrieved January 20, 2017.
Edelman, Gilad (May 25, 2022). "Proton Is Trying to Become Google—Without Your Data". Wired. ISSN 1059-1028. Archived from the original on September 30, 2023. Retrieved May 27, 2022.
Proton Mail [@Protonmail] (September 25, 2020). "@TheEvanCarroll That is correct. We don't have a stand-alone back-end that can be installed for small deployment, because our backend software is optimized for large deployments with millions of users and distributed infrastructure" (Tweet). Archived from the original on July 10, 2021. Retrieved September 11, 2021 – via Twitter.
"Proton Mail responds on Reddit". April 2, 2019. Archived from the original on November 14, 2020. Retrieved September 24, 2020. We don't plan to open source the back-end code, because it doesn't add trust (users can't verify what code is running on the backend) and doing so would given away information about how we do anti-spam and anti-abuse.
"Proton Mail goes Open Source with version 2.0". Proton Mail Blog. August 13, 2015. Archived from the original on May 28, 2022. Retrieved January 31, 2016.
"Proton Mail iOS app is open source". Proton Mail Blog. October 30, 2019. Archived from the original on May 28, 2022. Retrieved December 12, 2019.
"The Proton Mail Android app is open source". Proton Mail Blog. April 23, 2020. Archived from the original on May 28, 2022. Retrieved April 24, 2020.
"Proton Mail Bridge is open source on macOS, Windows, and Linux". Proton Mail Blog. April 15, 2020. Archived from the original on May 28, 2022. Retrieved April 24, 2020.
"Proton Mail Unveils an Overdue Makeover and New Features". Gizmodo. June 8, 2021. Archived from the original on April 7, 2022. Retrieved July 6, 2021.
"Über-Secure ProtonMail Beta Maxes Out Servers in Just 60 Hours". Infosecurity Magazine. May 22, 2014. Archived from the original on November 7, 2018. Retrieved October 19, 2015.
"Proton Mail raises a record $500,000 through crowdfunding to disrupt the state of email communications". Proton. July 29, 2014. Archived from the original on December 3, 2023. Retrieved May 13, 2024. Proton Mail's crowdfunding campaign has surged past $500,000 with the support of over 10,000 backers
Halfacree, Gareth (July 1, 2014). "ProtonMail hit by PayPal account freeze". bit-tech. Archived from the original on November 20, 2018. Retrieved October 19, 2015.
Howell O'Neill, Patrick (July 1, 2014). "PayPal freezes account of email encryption startup Proton Mail [Update]". The Daily Dot. Archived from the original on June 18, 2019. Retrieved October 19, 2015.
Yen, Andy (June 30, 2014). "Paypal Freezes Proton Mail Campaign Funds". Proton Mail Blog. Archived from the original on May 28, 2022. Retrieved October 19, 2015.
"Proton Mail has raised $2M USD". startupticker.ch. March 18, 2015. Archived from the original on June 14, 2022. Retrieved October 19, 2015.
"Meet the Proton team". Proton. May 25, 2022. Archived from the original on October 10, 2023. Retrieved May 28, 2022.
"Announcement: Proton Mail has launched worldwide!". Proton Mail Blog. March 17, 2016. Archived from the original on May 28, 2022. Retrieved July 21, 2016.
Leyden, John (November 5, 2015). "Proton Mail still under attack by DDoS bombardment". The Register. Archived from the original on November 15, 2018. Retrieved November 5, 2015.
Martin, Alexander J. (January 19, 2017). "Proton Mail launches Tor hidden service to dodge totalitarian censorship". The Register. Archived from the original on January 20, 2017.
"Introducing Proton Mail Contacts – the world's first encrypted contacts manager". Proton Mail Blog. November 21, 2017. Archived from the original on May 28, 2022. Retrieved May 28, 2022.
M., Irina (December 6, 2017). "Introducing Proton Mail Bridge, email encryption for Outlook, Thunderbird, and Apple Mail". Proton Mail Blog. Archived from the original on May 28, 2022. Retrieved December 16, 2017.
Lynch, Justin (July 2, 2018). "Proton Mail CEO: 'The attacks are continuing'". Fifth Domain. Sightline Media Group. Archived from the original on May 4, 2019. Retrieved July 3, 2018.
"Apophis Squad member responsible for attacks against Proton Mail has been arrested - Proton Mail Blog". Proton Mail Blog. September 6, 2018. Archived from the original on May 4, 2019. Retrieved September 28, 2018.
"Introducing Address Verification and Full PGP Support - Proton Mail Blog". Proton Mail Blog. July 25, 2018. Archived from the original on May 28, 2022. Retrieved September 28, 2018.
Amadeo, Ron (September 24, 2020). "Epic, Spotify, and others take on Apple with "Coalition for App Fairness"". Ars Technica. Archived from the original on September 24, 2020. Retrieved September 26, 2020.
"Coalition for Competitive Digital Markets". Coalition for Competitive Digital Markets. October 21, 2021. Archived from the original on May 29, 2022. Retrieved May 28, 2022.
"Securitum Security Report" (PDF). Proton mail blog. Archived from the original (PDF) on July 5, 2021.
Kobeissi, Nadim (September 6, 2021). "An Analysis of the ProtonMail Cryptographic Architecture" (PDF). The Cryptology ePrint Archive. Archived (PDF) from the original on November 17, 2022. Retrieved November 2, 2021.
"SimpleLogin joins the Proton family". SimpleLogin. April 8, 2022. Archived from the original on December 5, 2023. Retrieved December 14, 2023.
Yen, Andy (November 7, 2022). "Proton and SimpleLogin are joining forces". Proton. Archived from the original on June 17, 2023. Retrieved December 14, 2023. We have been following SimpleLogin closely for a long time as many Proton Mail users utilize it to prevent their Proton Mail addresses from being leaked to spammers
Khalili, Joel (May 25, 2022). "Proton Mail rebrands as Proton: VPN, email, calendar, cloud storage and password manager now available under one bundle". TechRadar. Archived from the original on June 23, 2022. Retrieved June 23, 2022.
"Introducing the Proton Mail desktop app". Proton. March 14, 2024. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
Khalid, Amrita (December 14, 2023). "Proton Mail finally gets a desktop app for encrypted email and calendar". The Verge. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
Sneddon, Joey (March 14, 2024). "Proton Mail's New Desktop App is Available for Linux". OMG! Ubuntu. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
Sawers, Paul (March 14, 2024). "Proton Mail desktop app officially launches, but remains for premium subscribers only". TechCrunch. Archived from the original on April 1, 2024. Retrieved April 1, 2024.
Jawad, Usama (March 14, 2024). "Proton Mail's desktop app is now generally available for Windows and Mac". XDA Developers. Archived from the original on March 17, 2024. Retrieved April 1, 2024.
Stockman, Jason (May 22, 2014). "How are Proton Mail keys distributed?". Stack Exchange. Archived from the original on November 15, 2018. Retrieved October 19, 2015.
Khandelwal, Swati (May 26, 2014). "Proton Mail: 'NSA-Proof' End-to-End Encrypted Email Service". The Hacker News. Archived from the original on November 7, 2018. Retrieved October 19, 2015.
Yen, Andy (September 22, 2015). "Proton Mail adds Facebook PGP integration". Proton Mail Blog. Archived from the original on May 28, 2022. Retrieved October 19, 2015.
"Proton Mail Security Details". Proton Mail Security. January 31, 2016. Archived from the original on October 11, 2023. Retrieved January 31, 2016.
Yen, Andy (December 17, 2014). "Proton Mail RIPE announcement". Proton Mail Blog. Archived from the original on June 7, 2022. Retrieved July 16, 2021.
Graw, Michael (October 5, 2022). "ProtonMail review". IT Pro. Archived from the original on August 12, 2023. Retrieved August 12, 2023.
Rubenking, Neil J. (December 12, 2022). "ProtonMail - Review". PCMag. Archived from the original on August 12, 2023. Retrieved August 12, 2022.{{cite web}}: CS1 maint: bot: original URL status unknown (link)
Athow, Desire (June 16, 2023). "Proton Mail review". TechRadar. Archived from the original on August 12, 2023. Retrieved August 12, 2023.
"Proton Privacy Policy". proton.me. May 25, 2022. Archived from the original on September 5, 2021. Retrieved September 10, 2021.
"Is Proton Mail blocked in Belarus?". Proton Mail Blog. November 15, 2019. Archived from the original on November 17, 2019. Retrieved September 14, 2022.
Tsydenova, Nadezhda; Ivanova, Polina (January 29, 2020). Heinrich, Mark (ed.). "Russia blocks encrypted email service Proton Mail". Reuters. Archived from the original on January 30, 2020. Retrieved January 30, 2020.
"Почтовый сервис Proton Mail заблокировали в России из-за сообщений о минированиях". www.kommersant.ru (in Russian). January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.
"Russia Blocks Encrypted Swiss Email Service Proton Mail". The Moscow Times. Reuters. January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.
"Proton Mail не получала просьб о помощи в поисках лжеминеров". Interfax.ru (in Russian). January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.
"Россия не обращалась за информацией о "минерах", заявили в Proton Mail". РИА Новости (in Russian). January 29, 2020. Archived from the original on January 29, 2020. Retrieved January 29, 2020.
"We are rolling out technologies which will help us better overcome attempts to block Proton Mail". Reddit. March 13, 2020. Archived from the original on November 14, 2020. Retrieved March 14, 2020.
"Transparency Report". proton.me. September 10, 2021. Archived from the original on August 25, 2022. Retrieved September 10, 2021.
Silva, Gioia da (August 3, 2021). "«Wenn du noch einmal das Wort Impfpflicht in den Mund nimmst, schlage ich dir und deiner Frau die Zähne aus»: Der Schweizer Service ProtonMail wird immer wieder für Drohungen missbraucht" ["If you say the word compulsory vaccination again, I'll knock your and your wife's teeth out": The Swiss service Proton Mail is repeatedly misused for threats]. Neue Zürcher Zeitung (in Swiss High German). Archived from the original on May 13, 2024. Retrieved September 10, 2021.
"Important clarifications regarding arrest of climate activist". proton.me. September 6, 2021. Archived from the original on May 28, 2022. Retrieved September 10, 2021.
Shields, Michael (October 22, 2021). "Secure email group Proton wins Swiss appeal over surveillance rules". Reuters. Archived from the original on October 17, 2023. Retrieved May 26, 2022.
"Proton Mail provided user data that led to an arrest in Spain". TechSpot. May 14, 2024. Archived from the original on May 14, 2024. Retrieved May 14, 2024.

wired.com

Edelman, Gilad (May 25, 2022). "Proton Is Trying to Become Google—Without Your Data". Wired. ISSN 1059-1028. Archived from the original on September 30, 2023. Retrieved May 27, 2022.

worldcat.org

search.worldcat.org

Edelman, Gilad (May 25, 2022). "Proton Is Trying to Become Google—Without Your Data". Wired. ISSN 1059-1028. Archived from the original on September 30, 2023. Retrieved May 27, 2022.

x.com

Proton Mail [@Protonmail] (September 25, 2020). "@TheEvanCarroll That is correct. We don't have a stand-alone back-end that can be installed for small deployment, because our backend software is optimized for large deployments with millions of users and distributed infrastructure" (Tweet). Archived from the original on July 10, 2021. Retrieved September 11, 2021 – via Twitter.
@ProtonMail (November 5, 2015). "We are seeking a datacenter in Switzerland brave enough to host ProtonMail, many are afraid due to the magnitude of the attack against us" (Tweet) – via Twitter.

xda-developers.com

Jawad, Usama (March 14, 2024). "Proton Mail's desktop app is now generally available for Windows and Mac". XDA Developers. Archived from the original on March 17, 2024. Retrieved April 1, 2024.