It&#x27;s still not ready for production use. One problem with e2e is that it&#x27;s JavaScript based and runs in he browser, so there is a certain attack vector present there. To defend against this, ideally e2e needs to work with a smartcard (such as the yubikey neo) so that the private key cannot be stolen.<p>There was an issue I was tracking a while back to integrate this support, but it&#x27;s still a work in progress.