Marcin, It looks like your bank renewed their SSL cert on Feb 9th, and they forgot to include the intermediate certificate.
This is a configuration problem on their end and has nothing to do with Ubuntu updates. Tell them to go to the following page and type in ebank.db-pbc.pl for more information : https://cryptoreport.websecurity.symantec.com/checker/views/certCheck.jsp -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1551615 Title: Alternative chain verification failure after 1024b root CAs removal To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ca-certificates/+bug/1551615/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs