Nation state level man in the middle attack. if you want maximum endpoint security, learn about real security protocols and use a secure operating system like Qubes OS. It would be unreasonable to assume any secure online service could protect you from this type of attack. Protonmail does not protect you if your endpoint is compromised. Read my blog post about the Vault7 leaks ( here) and you will realize that when government is stifled by strong encryption (Whatsapp, Signal, etc), they compromise the endpoint and extract the information pre/post-encryption.

They have chosen to implement good enough security which makes encryption generally accessible to the masses while protecting against unauthorized government seizure or mass surveillance. Make the product too secure and no one will use it (aka bankruptcy) or make it extremely user friendly but not secure (become a me too email provider).

The bright scientists behind Protonmail understand fine balance they must find between usability and security. There is always a tradeoff between usability and security, The difficulty is finding the right balance. “Absolute security is unpractical and will never gain widespread adoption so good security should be the goal for most services.” PGP is a good example of strong unbreakable email encryption that never became mainstream because it was simply too complicated for the mortal man. The other major issue faced by secre service providers is ease of use. We use email because we don't have a choice and everyone agrees it won't be displaced tomorrow. “Everyone needs to understand that SMTP was not designed to be secure and will always have security weaknesses.” For everyone else looking for an easy and secure email solution, keep reading about Protonmail.

Why would anyone use Protonmail instead of Gmail or Hotmail? SECURITYĮmail is inherently insecure and if you are a political dissident whose online communications can mean the difference between living and dying, don't use email.

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