Governments, businesses, and private citizens all use computers on a daily basis. Cyber security exists to protect computer systems and shared data from theft or damage by any presence that plans to do harm. Security is a constant issue as technology changes and criminals circumvent existing safety measures.

Greece, officially the Hellenic Republic, or Hellas as called from ancient times, is a country in Southeast Europe. According to the 2011 census, Greece's population is around 11 million.

Master-level studies involve specialized study in a field of research or an area of professional practice. Earning a master’s degree demonstrates a higher level of mastery of the subject.
Earning a master’s degree can take anywhere from a year to three or four years. Before you can graduate, you usually must write and defend a thesis, a long paper that is the culmination of your specialized research.