The ERP system is the heart of the organization and contains a wealth of confidential company information. Are you considering a B2B online shop that will integrate with your ERP system? Then it is important that it is secure. Because of the large volume of data, it contains, your online shop will be a likely target for cybercriminals. With the right software, however, they won't stand a chance. Open, closed, or hybrid source software: which type is the safest? And what is really the difference?