2026-04-17 Renewal of Intermediate Certificates CCK MF

Published: 17.04.2026 14:40 (Warsaw time)

Updated: 17.04.2026 14:41 (Warsaw time)

The Ministry of Finance's Certification Center (CCK MF) is initiating the renewal process for the external, internal, and infrastructure and application certification authorities. New certificates have been published and must be downloaded and added to system or application repositories as trusted intermediate certification authorities.

Renewal process starts on April 17, 2026.
New certificates have updated validity periods and include a SERIALNUMBER attribute.
Previously issued certificates remain active until their expiration.
Archived CCK MF certificates will be used for verification.

View original on PUESC

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