A security expert. Working for about 10 years at MarkAny Inc(Document Security) before start-up and working as head of security solution Div. A start-up/investment/failure experiences. Since then, he established SSenStone with colleagues who have worked together for 10 to 18 years. He leads the company directly from technology development to field sales, and is currently in charge of global business. His driving force and Organization power seem to have been trained from ROTC officer and Samsung. SSenStone is already making stable sales in the domestic market with first technology and is working with global conglomerates with the second technology.