iDIN is an identity scheme which allows users to log in to other web applications using their bank credentials. All Dutch users which have a bank account will be able to use iDIN. The main reason for using iDIN is to reduce the number of usernames and passwords the user has to remember. This will reduce the need for customer support as well as ensure that the user can easily complete the tasks that they need to carry out.
By using iDIN, the user will be reusing their existing bank credentials to log in to multiple web applications. iDIN offers an identity which is verified by the bank and thereby can be trusted. This also includes information about the user such as their gender, age and address. In some cases, their phone number and e-mail address are also available.