Revocation of signature certificates for electronic proof of identity
If your new ID card has been lost, the electronic signature must be blocked separately.
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Basic information
When using the electronic signature, the signature function must be blocked separately if the ID card is lost or stolen. This blocking is carried out directly by the provider from whom the signature certificate was purchased. Alternatively, the blocking can also be carried out at the BürgerServiceCenters of the Bürgeramt.
Requirements
- German in the sense of Art. 116 Para. 1 of the German Basic Law (GG)
- Registered in the municipality with main residence
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Procedure
To block your account, contact the toll telephone number. You will be guided through the blocking process there. Alternatively, you can visit a BürgerServiceCenter.
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Fees / Costs
Costs for blocking an electronic signature certificate are the responsibility of the respective provider.
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Deadlines & processing time
What deadlines must be paid attention to?
Not specified.
How long does it take to process
Not specified.
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Legal Bases
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The official information in German is complete and correct. 09.04.2026