DUBLIN--(BUSINESS WIRE)--Research and Markets (http://www.researchandmarkets.com/research/jhcxn5/analysis_of_the) has announced the addition of the "Analysis of the Global Network Access Control (NAC) Market " report to their offering. In 2013, network access control (NAC) entered a hot market stage. Frost & Sullivan estimates that NAC global revenues grew 40.5% year-over-year. Continuing strong demand for NAC functionality is expected over the next five years. The primary reason is that NA