Rusyns (sometimes spelled Rusins, or called Carpatho-Rusyns signifying their villages being in the Carpathian Mountains) are one of the many nationalities/ethnic groups of Slovakia, along with Slovaks, Hungarians, Germans, and Romanies (Gypsies).
Confidential information is often only valuable if it can be used. Such use of information will invariably involve, (a) storage of the information in an accessible form; and (b) its disclosure to others.
Proprietary information is sensitive information that is owned by a company and which gives the company certain competitive advantages.