this post was submitted on 25 Apr 2024
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I think you are agreeing with me. I like Proton because it uses a standard protocol and it provides a migration path from unencrypted to encrypted.
PGP and GPG are effectively synonyms in this context. (GPG is just an implementation of PGP)
Yes, agreeing in general, just with some clarifications. I think clarifications are important when talking about a product focused on privacy and security.
I was responding to this part:
Proton uses standard PGP AFAIK (and yes, PGP vs GPG is irrelevant), so your subject line and attachment names are not end-to-end encrypted:
Depending on your threat model, this may or may not be an issue.
At least one other provider (Tuta in my example) doesn't use PGP internally because using SMTP internally w/ PGP for the body leaks the subject line and other metadata. Neither have released the source to their backend, and I haven't read the client code, so I don't know if there are any other concerns.
That I think Proton is absolutely fantastic, and I used it for a few years with absolutely no issue. I do think it's important to be accurate, though, since others may not like the tradeoffs. Proton has a bunch of other benefits as well over alternatives, such as:
Yeah, any email provider will use standard SMTP, otherwise it's not email. The differences are whatever happens after it reaches Proton's servers.