Ernst & Young is a global professional services firm founded in 1849 with over 170,000 employees worldwide. As a consulting and assurance company, knowledge management is important for Ernst & Young to store solutions, facts, and applied knowledge from past projects to efficiently serve clients without errors. An aging workforce also risks losing critical knowledge of clients and industries, so codifying this information and developing new knowledge is important as employees retire. Social networking sites could potentially help knowledge sharing but also have pitfalls for a professional company like privacy and information security risks that would need to be mitigated.