From 23 September, single sign-on will no longer be automatically enabled for all users. Instead, institutions that have implemented the Ísland.is Authentication Service must select separately to activate single sign-on if they choose to do so.

How does the Authentication Service Work Today?

Single Sign-On allows users to log in at once and thus access multiple systems without further logins.

For example: a user logs in to My pages on Ísland.is but then can open in the same browser, e.g. Heilsuvera or Tax Administration's Service page, without re-authentication. This is called a single sign-on.

Reason for the change

The amendment is intended to ensure greater user safety since a possible security vulnerability has been identified which could affect the identification through single login. The amendment means that single sign-on will no longer be automatically enabled, but can be enabled by public bodies themselves.

Effects on public sector bodies

• Organisations that do not wish to use single registration: no actions required

• Organisations that wish to continue to use single sign-on for authentication: need to update those settings according to the guidelines

Impact on individuals and businesses

• Users who use digital public services will feel that in some cases they have to log in again between systems.

• In the example above, a user who has already logged on to My pages on Ísland.is will not be able to access Heilsuvera directly without re-authenticating.

Public entities are encouraged to examine the current usage of the Iceland.is Authentication Service and evaluate and decide whether they want to continue with a single login or not.

More information on the change can be requested via island@island.is