Compared to OpenID, mojeID has a major advantage, which is different stages of identity verification. The first stage verifies that the user actually has access to the email box and mobile phone entered during registration. In the second stage, the user can request a further verification code to be sent to their postal address. The highest degree of verification is called validation, at which the user authentication is based on a personal visit to a CZ.NIC office, a valid electronic signature, or an officially certified written request.