Home > Data Protection > PowerProtect DD Series Appliances > Dell PowerProtect DD Series Appliances: Security > PowerProtect DD series appliances: Security
PowerProtect DD series appliance runs with embedded Data Domain Operating System (DDOS). Additional software or agents cannot be installed or run within a system. This restriction ensures control, and consistency of DDOS releases and provides additional security over the system. PowerProtect DD appliances are purpose-built physical and virtual appliances with restricted access to their internal operation. DD series as central repositories for both structured and unstructured backup data have many security capabilities and attributes to protect the data.