MitID authenticators can be blocked permanently or temporarily.

Always block your authenticator, if you suspect it has been compromised, that is, if you fx have lost or suspect that someone else is abusing your authenticator. 

A MitID authenticator can be blocked due to security concerns. If you enter the wrong PIN code too many times, your MitID app will initially be temporarily suspended, and finally blocked if a wrong PIN code is continuously being entered. A temporarily suspended app, can be reactivated on MitID.dk or you can contact MitID support or a citizen service center to have it activated again.

MitID app and password

If you enter your PIN code or password incorrect too many times, your MitID app or password can be temporarily blocked. On MitID.dk you are able to reactivate them.

Read more about temporarily blocked authenticators here

If your MitID app or password are permanently blocked, you will not be able to use them again. You have to get a new MitiD app or password. 

This is how you activate an authenticator 

MitID code display and MitID audio code reader

If you enter your one time acces code too many times, your authenticator will be temporarily blocked. On MitID.dk You are able to reactivate them.

Read more about temporarily blocked authenticators here

If your MitID code display or your MitID audio code reader is blocked, you will not be able to use it again. You are required to order a new authenticator.

This is how you order a new MitID authenticator

This is how you add a new MitID authenticator

MitID chip

If you MitID chip is permanently blocked, you will be able to use the physical chip again and add it as a new MitID authenticator.

The explanation is that as you add a new MitID chip, a security element is created in the MitID chip with a corresponding element in the MitID solution. If your MitID chip is permanently blocked, then the security element in the MitID solution is deleted. When the same MitID chip is added again, then a new security element is created, thus enabling the physical MitID chip to be reused.

This is how you add a new MitID authenticator