He began to type the message: Package is compromised. The Shadow Group is active. Extraction needed at Sector 4. Burn the protocols.

[Third-Party Client] <---> [Proton Mail Bridge (Local)] <---(Encrypted)---> [Proton Servers] (Outlook/TBird) (Decrypts/Encrypts) How the Bridge Works

However, for the 90% use case—reading, writing, organizing, and archiving secure emails—it is superior to the browser in every way.

Here is why you should download it right now.

Free tiers have constrained storage parameters, meaning power users will eventually need to upgrade to handle large attachments.

Do you use the ProtonMail desktop app, or are you sticking to the web? Let me know in the comments below!

: ProtonMail's client-side code is open source, allowing the community to review and audit the code. This transparency contributes to the trustworthiness and security of the service.

Proton Mail: Get a free email account with privacy and encryption | Proton