[rfrec0n]

From my brief experience working at a similar company, calling the software they use closed-sourced is a bit of a reach. When I worked there, we almost exclusively used rebranded and slightly modified open source/freeware CMS systems. Actually the only software we sold that was completely developed in-house were testing/configuration tools or extremely simple and basically worthless LDAP auth based reporting programs that could only be used on-premise.