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List of minimum REQUIREMENTS to operational systems and browsers

*    As of January 10, 2023 Microsoft ended support for Windows 8. In some cases this can result in inability to use your electronic signature under this version of the operating system.

**   As of June 15, 2022, Internet Explorer will be suspended by Microsoft. In some cases this may make it impossible to use an electronic signature through the Internet Explorer browser.

***  As of January 14, 2020 Microsoft ended support for Windows 7. In some cases this can result in inability to use your electronic signature under this version of the operating system.

 **** As of April 8, 2014 Microsoft ended support for Windows XP. In some cases this can result in inability to use your electronic signature under this version of the operating system.

*****If you are using Thin Client, your card reader and/or smart card may not be supported by it. Their maintenance in the Thin Client is under the responsibility of the manufacturer.

Operating system Internet browser version B-Trust smart card software
           Chrome/ Edge                Firefox          Cryptovision               Gemalto
Windows 10 x32/x64  Yes Yes Yes Yes
Windows 11 x64  Yes Yes Yes Yes
Mac OS X v11.x and higher Yes Yes - Yes
Linux RHEL Yes/- Yes - Yes
Linux Ubuntu Yes/- Yes Yes Yes
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Contact us

Headquarters

41 Tsar Boris III Blvd.
1612 Sofia
e-mail: office

Lost or stolen signature

In case of lost or stolen signature – for temporarily suspension of 48 hours, call

0700 199 10 or *9910

In order to terminate your electronic signature, visit one of our offices.

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