BAMF - Bundesamt für Migration und Flüchtlinge - Special functions

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Special functions

"Access using a pseudonym" and "verification of age and address"

In order to guarantee that no more personal data are transmitted than absolutely necessary, the electronic residence title is equipped with special functions that permit communication without transmitting data.

Access using a pseudonym

Access using a pseudonym is provided for repeat registration with online services for which users log in with an existing user profile (e.g. e-mail account, online shops) and for services for which no personal data are necessary.

The electronic residence title chip produces a special identifier with which users can identify themselves but that does not enable their personal data to be read. This procedure, together with using the secret 6-digit number (PIN), is just as simple as the usual log on method, but is significantly more secure.

Verification of age and address

Some services may only be used by those who have reached a specific age or are registered as living at a particular address. The electronic residence title can confirm your age or address without revealing other details. Only a simple "yes" or "no" will be transmitted.

Date 18 November 2011

Additional Information

Frequently questions

Are fingerprints stored in the local immigration office permanently?

No. They are stored until the electronic residence title is given to the applicant. After this, the data are deleted irrevocably.

Are my data secure from hackers during transmission?

Your data are encrypted every time they are transmitted. All information and transmissions are protected with internationally recognised and established encryption processes.

Each provider wishing to use the electronic residence title for its services must apply for the relevant state authorisation certificate from the Issuing Office for Authorisation Certificates [Vergabestelle für Berechtigungszertifikate (VfB)] which is part of the Federal Office of Administration [Bundesverwaltungsamt]. The Issuing Office has strict rules about the data required to perform the service.

Are my data secure when using the internet?

Yes, your personal data are in fact more secure than if you were to use the internet without an electronic residence title when shopping or participating on social networking sites. The on-line identity function checks before each action whether the service provider really is the one it purports to be.

Are the old residence titles still valid?

The existing residence titles in passports and replacement passport documents retain the validity entered there until 31.08.2021 at the latest.

© 2018 Copyright by Federal Office for Migration and Refugees. All rights reserved.

Wichtige Mitteilung


There have been several occasions very recently in which people have pretended to be employees of the Federal Office and asked for an interview at which they questioned asylum applicants intensively. This took place in some cases on the pretext that a second hearing was allegedly needed. Important: The Federal Office does not conduct home visits! These individuals do not work for the Federal Office. The Federal Office has therefore filed criminal charges. If something similar happens to you, or if you observe anything of this nature as a carer, please report this to your local police station.Interviewers from reputable survey institutes who are currently conducting interviews as part of research projects in which data are collected on a voluntary basis clearly state who they are working for. They also give the name of the survey institute and prove this by showing the appropriate documentation. This means that you can make enquiries should you have any doubts.

Fraud Phone Calls