[DCP-o-matic] Is DCP-o-matic is secure

Hello team, I tried the system and it's wonderful. Your system is really easy to use. I would like to start using your system instead of an expensive system (like clipster), but I'm wondering is DCP-o-matic is really secure or not. I'm wondering how the certificate of my DCP-o-matic software is secure. For exemple, on a clipster machine, the certificate is base on a cheap in my computer so nobody can reproduce my computer to use the DKDM. Thank you for you help Alex