I would have expected to see at least some of their source code on Github (https://github.com/Crypho https://github.com/Crypho), especially the client-side wher

I would have expected to see at least some of their source code on Github (https://github.com/Crypho https://github.com/Crypho), especially the client-side where the private key and passphrase are handled (as described at https://www.crypho.com/security.html https://www.crypho.com/security.html). Without being able to inspect the source, why should anyone trust this company more than, say, Google or Facebook?