SWITCH Identity Blog

The Identity Blog puts the spotlight on identity management, digital identities, identifiers, attributes, authentication and access management.


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e-Mail Address Spring Cleaning

In SWITCH edu-ID the e-mail addresses play a crucial role not only for communication with an edu-ID user but also for authentication. Every e-mail address associated to an edu-ID account also serves as login name. An e-mail address can also be used to reset the password of an edu-ID account. And unless Two-Step login is activated, this would be sufficient to gain control of an account.

Unfortunately, many e-mail addresses don’t belong permanently to the same person. When a student finishes her studies, she will loose her university e-mail address after some time. When a staff member changes jobs, he won’t keep his company e-mail address either.
 In case of popular names, some organisations re-assign e-mail addresses to persons with the same name, hopefully only after a long grace-period. If such a “recycled” e-mail address is still associated to a user account of the original holder of this address in a system like SWITCH edu-ID, this might cause severe security problems.
 Therefore, SWITCH edu-ID has some automated mechanisms to detect, remove, replace and inform about e-mail addresses that no longer work. How do these processes work?

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