FYI, while Threema front-end clients (apps) are open-source (and offer reproducible builds, which is surprisingly uncommon in open-source land), the server component, though supposedly audited, remains closed-source.
EDIT: for comparison, the Signal server code is mostly open source, but things like the spam filter are closed.
Wrong.
https://threema.com/en/why-threema/open-source
FYI, while Threema front-end clients (apps) are open-source (and offer reproducible builds, which is surprisingly uncommon in open-source land), the server component, though supposedly audited, remains closed-source.
EDIT: for comparison, the Signal server code is mostly open source, but things like the spam filter are closed.
Thanks.
And I didn’t know Signal had spam filters. It makes sense to not make that open source.
In my circle of 20 there has only been one instance of spam over several years. 3 of us got the same message.