Providing structured and quantitative security assessment for IT/OT systems is challenging. Despite the various methods and standards that exist to provide assessment, however, most of them are qualitative, abstract, costly, and not connected to technical system and its tests and evaluations. To meet this challenges, we developed in previous work a methodology that enables quantitative and structured assessment of IT/OT systems. In this demonstration we present SeCORE, an innovative platform that has been recently developed to implement the aforementioned methodology and can provide various services that fill the existing security assurance and assessment gap and can be used in various application domains.