A system and method is introduced for combining a secure device with a non secure user machine for using and sharing secure data seamlessly through the non secure user machine. The secure device runs in a separate, “parallel world” to the user machine so that the user machine cannot access secure data while it is being used. Even if the user machine is already compromised, the secure data and its usage remain protected from the likes of key logging and screen captures. The secure device authenticates secure data handling to the user so that the user is able to differentiate between a secure and a non secure data usage, as well as identify false imitations of the secure environment.