Just to clarify, if you ever find a way into the system in Estonia, I'd certainly like to know that because if the digital ID is stolen in some way, I understand that they revoke the certificate. I understand they have been operating the system since 2000 and they claim they've never had any identity theft.
If there were to be a significant problem in their system, you would think it would have occurred, since they have been operating it for so long already, but I could be wrong.