Encrypted email app ProtonMail introduces two-factor authentication

ProtonMail has finally introduced two-factor authentication (2FA) to its encrypted email service, meaning you can now make it harder for third-parties to access your account should they gain access to your password.
The core raison d’être of ProtonMail is to provide a secure email service that uses client-side encryption — all data is encrypted before it arrives on the company’s servers. Given ProtonMail’s security-focused foundations — the company has previou