If you are a natural person wishing to cancel an approved valid digital signature certificate (digital certificate) issued by the Hellenic Public Administration Certification Authority (APED), you need to follow the relevant instructions on how to revoke a APED digital signature certificate. This service should only be used to revoke a APED digital signature certificate issued on or after 17.1.2022, and only if the mobile phone number that was registered when the digital signature was issued has changed and you have forgotten the issuance/revocation code. To issue the formal declaration of revocation you will need:

• either your internet banking or your personal Taxisnet credentials (after registering in the National Communication Register (EMEP) to confirm your mobile phone number)
• your mobile phone number, to which the confirmation codes will be sent before the document is issued

The process of revoking the digital certificate should continue with the filing of the electronic revocation application on the APED Certificate Management application portal.