What is encrypted?
Encryption is at the heart of what makes ProtonMail special. It provides a solution that is so easy to use, any one can enjoy it. As discussed in What is Encryption, Encryption is critical to keeping...
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Two-factor authentication (2FA)
Two-factor authentication (2FA) is an additional layer of security for your ProtonMail account. With 2FA enabled, you will be prompted to enter a six-digit code upon logging in. This six-digit code...
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Authentication Logs
ProtonMail provides security features that enable you to view login activity on your account. If you are concerned that someone has access to your account, you can follow the activity in your...
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What is Encryption?
Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. Using complex algorithms, the message is transformed into an illegible string of...
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Log out other sessions
ProtonMail provides a security feature that enables you to log out of your account from other devices. If you are concerned that someone else has access to your account or you forgot to log off on a...
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ProtonMail, Israel, and Radware relationship
ProtonMail is one of the only email providers which provides comprehensive DDoS protection. In order to provide this protection, we have partnered with Radware, one of the leaders in DDoS protection....
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ProtonMail’s SSL Certificate
NOTE: ProtonMail may use different SSL certificates for our subdomains, the information below only pertains to our main site protonmail.com ProtonMail is all about privacy and we want to do our best to...
View ArticleInfrastructure and Threat Model
To learn more about ProtonMail’s Infrastructure, please see: https://protonmail.com/blog/infrastructure-upgrades/. To learn more about ProtonMail’s Threat Model, please see:...
View ArticleProtonMail DDoS Protection
ProtonMail offers state-of-the-art DDoS protection for your personal or business email. Our team has strong expertise in DDoS protection, having previously successfully mitigated one of the largest...
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ProtonMail security checklist for new account owners
This article explains how new ProtonMail account owners can maximize the security of their new account. ProtonMail secures your account with features including end-to-end encryption; minimum tracking...
View ArticleWho owns ProtonMail
ProtonMail is a service provided by Proton Technologies AG, an employee-owned company based in Switzerland. Proton was founded in 2014 by a team of scientists who met at CERN (the European Center for...
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Two-factor authentication (2FA)
Two-factor authentication (2FA) is an additional layer of security for your ProtonMail account. With 2FA enabled, you will be prompted to enter a 6-digit code when you log in to your account. This...
View ArticleSecurity requirements and recommendations for OpenPGP keys
We recommend you avoid using the following OpenPGP keys with ProtonMail: RSA keys shorter than 2048 bits ECC keys using a Brainpool curve or secp256k1 (as opposed to Curve25519 or a NIST curve): It...
View ArticleWho owns ProtonMail
ProtonMail is a service provided by Proton Technologies AG, an employee-owned company based in Switzerland. Proton was founded in 2014 by a team of scientists who met at CERN (the European Center for...
View ArticleClik here to view.
Two-factor authentication (2FA)
Two-factor authentication (2FA) is an additional layer of security for your ProtonMail account. With 2FA enabled, you will be prompted to enter a 6-digit code when you log in to your account. This...
View ArticleClik here to view.
Authentication logs
ProtonMail provides security features that enable you to view login activity on your account. If you suspect that someone else has access to your account, you can check your login activity in the...
View ArticleClik here to view.
What is Encryption?
Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. Using complex algorithms, a message is transformed into an illegible string of...
View Article
